I had a similar problem about 2 years ago. I did the same test of the EGR valve and it was working fine (it would hold vacuum and the car would stall out) so I replaced the EGR Vacuum Regulator solenoid. NO JOY ! I finally realized I was not getting a good vacuum flow to the EVR. Followed the vacuum line back and found one soft and leaking spot in the hose. Cheap fix.
That hand vac pump has a little metal pintle sticking up on top of the cylinder just above the fitting so you can bleed vacuum off easily. No need to disconnect. Also, those older EGR valves may have a tiny air bleed hole so that when the vacuum is removed, it will bleed off and allow the diaphragm to return back. It works with full vacuum because it's a tiny, calibrated hole. But to the hand pump, it looks like a bad EGR valve. If the EGR valve is on top where you can see it, you can often see the hole right next to the vacuum connector. On those, you can put your finger right on the hole and test with the hand pump. Or just run a temporary hose from full vacuum somewhere to test the valve.
yeah, gm and others were great at having fixed orifice bleed holes, the metal would rust at the orifice or pick up grit and grime changing or stopping the bleed off, resulting in over opening and causing all sorts of havoc, like massive vacuum loss and lean-out stumble right at throttle tip-in. that was days of carburetors to odb1 and i think some obd2 still had the same (too many things in my head to recall it all)
Pine Hollow Auto Diagnostics Ivan it was a pleasure meeting you and hope to see you next year. Hoping to spend more time out there next year and would love to spend more time talking you and picking your brain.
@@jeremyanthony9300 I'm hoping this wk, but more than likely just clips of this Super Saturday event we all attended. I have worked hard to get jobs done to be able to go to the event and take time to travel to NYC after, therefore, no focus on videos at all.
@@CubasAutomotive well I hope you're doing well. Feel free to email me sometime. Btw what that video for when you all met at new level auto with Keith and had the new rav4.
Old cars with vacuum lines are so much fun! Even when there's only a few vacuum lines and old (leaky) VACUUM CAPS are on manifold ports giving H02S11 and H02S21 lean codes! Keep vacuum caps on hand! Good Job Ivan, Your Awesome Steve!
Thank you Craig! That is why I love these trips to Staten Island. Not only do the cars have some bizzare issues, but there is always a time constraint, so it forces you to think on your feet and work fast and efficiently!
Your channel should be bigger. I’m not a mechanic but I love going through these videos after remembering all the headaches I had with a Euro 1.8T car. I love all the big car channel on UA-cam but this is the best. Keep it up.
I had a 2004 that had an even more weird problem. The EGR vacuum solenoid would start out OK then, as it warmed up, would increase in resistance until it stopped closing. As the system is designed backwards (the valve has to operate to STOP EGR flow) the result was EGR at idle resulting in intermittent stalling. 2 Idle control valves later, I figured it out. Although we no longer have the car I kept the valve, promising myself I would disassemble it one day to understand how the coil was doing that. After 40+ years in electronics, I thought I had seen everything. Great fix here Ivan as usual!
Ahhh- yes, the vacuum HOSE days, back in the vacuum HOSE days, 98.9% was the vacuum hoses you need to begin with and make sure you have a tight fit and then you go to the next step especially if you put the silicone hoses which fit the best and last longer, a lot longer!!
With the 6g72 in the Eclipse that second vacuum line you pulled, the little one with white paint has a restrictor inside that gets clogged up pretty frequently, ensure it still flows.
Need video for Toyota Prius 3rd gen? Anyway, from much research.....to remove the EGR cooler/assemble...... use an extra reach 12 mm racheting wrench for the three Nuts in the back. I had a hard time reaching the 4th HIDDEN 12 mm nut underneath the EGR cooler. Then, used a Torx E8 socket for the two Bolts ( in the back of EGR cooler) and I finally freed the EGR assembly. It's literally impossible to remove EGR valve only for DYI non professional therefore we must remove the whole EGR assembly. Good video PINE H !!!
Eventually a 4 stage chroma gas chemical analysis was performed and it was determined the rubber hose was old and deteriorated causing atmospheric air to enter. Update! A further analysis was done and showed a sparkplug wire leaking caused ozone accelerating the rubber breakdown. Update!! An analysis of local air pollution in the car's zip code indicated local elevated ozone contributed to the vacuum hose failure. Update!!!
Two brilliant minds together! Great job Ivan and Steve. Whats up with the scotch lock? They are junk...corrosion invades there. I wish I had 1% of their knowledge. I`m ok with anything up to OBD2, stuff gets complicated then. Good scanners are an expense that I cannot afford. I miss the simple days of the 60`s that turned me into a shadetree mechanic.
Without a diagram, I'd have been all screwed up on this one! What an odd design. Gave me 80's flashbacks with all those vacuum hoses & valves! 😁 WAAAATCHOUT! The SIE is rollin' through! 🤘🚅 🛤⚡️
Kia used a very similar system on their older V6 engine. It was pretty commonplace for shops to replace cracked vacuum lines not realizing the OEM had small brass fixed orifice to regulate flow as well and this would cause a P0401 even if all parts were working correctly. I’m curious if Mitsubishi did something similar.
They did. The little restrictor aka small brass fixed orifice is on the line from the barrel shaped ""vacuum control valve". Don't know where to source one since i changed out all the lines, solenoid and EGR valve. The restrictor controls the flow so the valve doesn't open or close too fast. Car hesitates but doesn't throw a code. it will not complete the run cycle and be smog ready.
Would an electronic manometer help in diagnosing a vacuum leak or EGR problem? Your tenacity to solve problems is unsurpassed. I am sure QUIT does not exist in your vocabulary.
sometimes a guage is just easier to see but there's no reason you couldnt. the nice thing about those pumps is you have a direct read vacuum guage and a pump to supply vacuum if needed. i have one that will pump vacuum or pressure with the flip of a switch. sometimes you can pressure a line and use soapy water to find the bubbles
There were a couple vehicles on this trip where I got pretty frustrated, but Keith DeFazio is the one who will not let anyone quit until the problem is solved :)
Ivan/Steve, Great video, case study, and diagnosis - thank you! Is that clear blue stuff really vacuum tubing - it looks like fish tank tubing LOL. God bless Paul
You should change your name to Sherlock Holmes or at least wear a deer stalker hat lol :-D. You will track the fault down and you dont give up easy :-D. I have to admit that i got lost after a while, the system sucks ha ha :-D I do like steve, a nice bloke :-D
Man i have am 03 diamante vrx and the engine light goes on with the same 401 code. I can't seem to pin point a damn thing. The car has a new egr valve, new solenoid. Literally almost new everything. I even cleaned the egr pipe which had a lot of carbon build up. I'll need to go through every small hose again or just replace them to see what happens. Car shows no sign of weakness even with the 401 code, it's insanity.
My 2006 eclipse is doin this same thing...EGR everything is new an replaced an the check engine light won't turn off....does it take awhile for the car to reset an finally turn off?
Help! So, like an idiot i used my lights to see into a garage i was working on for a couple days. I started the engine and let the alternator donits thing. Was driving fine (2000 Mitsubishi montero sport 3.0 ls 2wd) went to another job. Accidentally left door cracked. Battery dead. Client jumps me...and ..idiot...i removed positive first. Immediately after starting to drive there was a grinding noise almost like something was in my tire or coming off the axle. Went to pull over about a block up and all hell broke loose. First the srs light then abs light i go to brake and it doesnt, i press again and its like immediate insane hard stop then with my foot still on the brake it lunges. I throw it in park and take the key out. Got it towed home. Now, battery fully charged, fuses all checked and are good. Dont know how to check relays. When i tried to start it b4 the tow truck got there it was rapid clicking and nothing but still was able to roll my power windows up and lock doors and door lights all work. Went to start it at home after fully charging (10 month old) battery and not even a clicking sound. Nothing. What the heck is going on? Any help would be greatly appreciated as this is my only vehichle and its my baby. I basically rehauled the whole upper engine in the last 2 years due to egr codes which have now been cleared. All vacuum lines and hoses have been replaced. Spark plugs and wires (coils were good) valve cover gaskets and orings on spark plug wells cam seals throttle body overhauled cps tps pcv valve coolant flush oil change egr and solenoid all replaced ran seafoam through the vacuum and pcv new air filters new ac drive belt and tensioner pulley.
I had a similar problem about 2 years ago. I did the same test of the EGR valve and it was working fine (it would hold vacuum and the car would stall out) so I replaced the EGR Vacuum Regulator solenoid. NO JOY ! I finally realized I was not getting a good vacuum flow to the EVR. Followed the vacuum line back and found one soft and leaking spot in the hose. Cheap fix.
That hand vac pump has a little metal pintle sticking up on top of the cylinder just above the fitting so you can bleed vacuum off easily. No need to disconnect.
Also, those older EGR valves may have a tiny air bleed hole so that when the vacuum is removed, it will bleed off and allow the diaphragm to return back. It works with full vacuum because it's a tiny, calibrated hole. But to the hand pump, it looks like a bad EGR valve. If the EGR valve is on top where you can see it, you can often see the hole right next to the vacuum connector. On those, you can put your finger right on the hole and test with the hand pump. Or just run a temporary hose from full vacuum somewhere to test the valve.
yeah, gm and others were great at having fixed orifice bleed holes, the metal would rust at the orifice or pick up grit and grime changing or stopping the bleed off, resulting in over opening and causing all sorts of havoc, like massive vacuum loss and lean-out stumble right at throttle tip-in. that was days of carburetors to odb1 and i think some obd2 still had the same (too many things in my head to recall it all)
understanding operation is always the first step! too many people just throw parts now days! great work
It was great hanging with you mate, look forward to next time :)
Awesome video Ivan! All star Steve with you! Very detail information and diagnosis! Thank you for sharing your knowledge!!
Steve and Maic, it was a blast working with you guys!! Will definitely have to do more collaborations soon :)
@@PineHollowAutoDiagnostics definitely mate, see you in February 👍
Nice work Ivan. You guys were killing it in Statan Island
Hi Cody! Great to see you on Super Saturday, and thank you for the T-shirt! I'll have to send you one too :)
Pine Hollow Auto Diagnostics Ivan it was a pleasure meeting you and hope to see you next year. Hoping to spend more time out there next year and would love to spend more time talking you and picking your brain.
Awesome! Very thorough diag. Nailed all the points that were contributing to the initial problem! Looked like fun!
When's your next video coming out? I miss your videos
@@jeremyanthony9300 I'm hoping this wk, but more than likely just clips of this Super Saturday event we all attended. I have worked hard to get jobs done to be able to go to the event and take time to travel to NYC after, therefore, no focus on videos at all.
@@CubasAutomotive well I hope you're doing well. Feel free to email me sometime. Btw what that video for when you all met at new level auto with Keith and had the new rav4.
@@jeremyanthony9300 no, this was last week's adventure. Super Saturday with the visit of 14 British friends and we headed to NYC after.
Old cars with vacuum lines are so much fun! Even when there's only a few vacuum lines and old (leaky) VACUUM CAPS are on manifold ports giving H02S11 and H02S21 lean codes! Keep vacuum caps on hand! Good Job Ivan, Your Awesome Steve!
I love your concise troubleshooting method. You find out what is working first, then move onto figuring out what isn't working.
Thank you Craig! That is why I love these trips to Staten Island. Not only do the cars have some bizzare issues, but there is always a time constraint, so it forces you to think on your feet and work fast and efficiently!
Your channel should be bigger. I’m not a mechanic but I love going through these videos after remembering all the headaches I had with a Euro 1.8T car. I love all the big car channel on UA-cam but this is the best. Keep it up.
Those EGR’s can stick also with all that carbon that builds up inside the pintle. Nice Job Ivan
I had a 2004 that had an even more weird problem. The EGR vacuum solenoid would start out OK then, as it warmed up, would increase in resistance until it stopped closing. As the system is designed backwards (the valve has to operate to STOP EGR flow) the result was EGR at idle resulting in intermittent stalling. 2 Idle control valves later, I figured it out. Although we no longer have the car I kept the valve, promising myself I would disassemble it one day to understand how the coil was doing that. After 40+ years in electronics, I thought I had seen everything. Great fix here Ivan as usual!
Great story, David! Sounds similar to the Toyota Camry that had an EGR solenoid problem that we diagnosed a while back :)
Thank you Ivan, Steve and Corey. Good job. Have a blessed and safe week.
This is one of your best videos. I really enjoy your channel.
Ahhh- yes, the vacuum HOSE days, back in the vacuum HOSE days, 98.9% was the vacuum hoses you need to begin with and make sure you have a tight fit and then you go to the next step especially if you put the silicone hoses which fit the best and last longer, a lot longer!!
Love PHD video morning coffee. all good. Got to love it when fingers get in there before you and muck things up.
With the 6g72 in the Eclipse that second vacuum line you pulled, the little one with white paint has a restrictor inside that gets clogged up pretty frequently, ensure it still flows.
All hail the Great Ivan.
Great job,,,I love how you keep digging,,might have to change your name to DIGGER,,,
Need video for Toyota Prius 3rd gen? Anyway, from much research.....to remove the EGR cooler/assemble...... use an extra reach 12 mm racheting wrench for the three Nuts in the back. I had a hard time reaching the 4th HIDDEN 12 mm nut underneath the EGR cooler. Then, used a Torx E8 socket for the two Bolts ( in the back of EGR cooler) and I finally freed the EGR assembly. It's literally impossible to remove EGR valve only for DYI non professional therefore we must remove the whole EGR assembly. Good video PINE H !!!
Yeah baby! That was awesome Ivan. Really informative diagnosis. Thanks!
Eventually a 4 stage chroma gas chemical analysis was performed and it was determined the rubber hose was old and deteriorated causing atmospheric air to enter. Update! A further analysis was done and showed a sparkplug wire leaking caused ozone accelerating the rubber breakdown. Update!! An analysis of local air pollution in the car's zip code indicated local elevated ozone contributed to the vacuum hose failure. Update!!!
update!, more like the ethanol and other cruft in the fuel ;) .............................................
Two brilliant minds together! Great job Ivan and Steve. Whats up with the scotch lock? They are junk...corrosion invades there. I wish I had 1% of their knowledge. I`m ok with anything up to OBD2, stuff gets complicated then. Good scanners are an expense that I cannot afford. I miss the simple days of the 60`s that turned me into a shadetree mechanic.
Amazing you and steve toguether!
Without a diagram, I'd have been all screwed up on this one! What an odd design. Gave me 80's flashbacks with all those vacuum hoses & valves! 😁
WAAAATCHOUT! The SIE is rollin' through! 🤘🚅 🛤⚡️
Strong diagnosis. I get how the EGR system is supposed to work, but that was a confusing mess even with the belated diagram.
Kia used a very similar system on their older V6 engine. It was pretty commonplace for shops to replace cracked vacuum lines not realizing the OEM had small brass fixed orifice to regulate flow as well and this would cause a P0401 even if all parts were working correctly. I’m curious if Mitsubishi did something similar.
They did. The little restrictor aka small brass fixed orifice is on the line from the barrel shaped ""vacuum control valve". Don't know where to source one since i changed out all the lines, solenoid and EGR valve. The restrictor controls the flow so the valve doesn't open or close too fast. Car hesitates but doesn't throw a code. it will not complete the run cycle and be smog ready.
Excellent detective work Ivan top notch
Would an electronic manometer help in diagnosing a vacuum leak or EGR problem? Your tenacity to solve problems is unsurpassed. I am sure QUIT does not exist in your vocabulary.
Wow, I use a manometer everyday and I never thought about using it for vehicle diags. Brilliant!
sometimes a guage is just easier to see but there's no reason you couldnt. the nice thing about those pumps is you have a direct read vacuum guage and a pump to supply vacuum if needed. i have one that will pump vacuum or pressure with the flip of a switch. sometimes you can pressure a line and use soapy water to find the bubbles
There were a couple vehicles on this trip where I got pretty frustrated, but Keith DeFazio is the one who will not let anyone quit until the problem is solved :)
@@PineHollowAutoDiagnostics Well, one thing is for sure...you are brutally honest. The world needs more auto techs like you in this world.
my 2000 Toyota Camry had the same problem with the egr solenoid
stall it out test wouldn't work unless it was fully warmed up
Is that vinyl tubing rated for vacuum? I'm glad you figured it out since that car seemed to be disobeying certain physical laws.
Nice job on the diagnosis.
So do I have to get vacuum hoses that match my eyes? Challenging. :)
Jeff Bazell D. +, Of course those VAC HOSES, have to match your EYES, this way you and your car to make a great fashion statement, 😂 😁 🤣 LOL!!!!!
Keep them coming man. Love your videos
Ivan/Steve,
Great video, case study, and diagnosis - thank you! Is that clear blue stuff really vacuum tubing - it looks like fish tank tubing LOL.
God bless
Paul
You should change your name to Sherlock Holmes or at least wear a deer stalker hat lol :-D.
You will track the fault down and you dont give up easy :-D.
I have to admit that i got lost after a while, the system sucks ha ha :-D
I do like steve, a nice bloke :-D
What's with the repaired wire on the EGR so lenoid?
The "scotch lock" you mean? Yeah, I cringed seeing that myself...
Damn scotch locks 🤦♂️
The other shop installed that for testing purposes lol
@@PineHollowAutoDiagnostics ugh! Test how long before that circuit fails?? Lol sure to fail now! Lol
Excellent job guys
is nice to have a smoker for things like this
Nice Diag. AS ALWAYS Ivan, Hey at 3:42 in the vid. WHAT KIND OF CAR IS THAT BEHIND YOU ? HAS NO GRILL, 4 HEADLIGHTS & WING WINDOWS.
im also curious...
1967 Plymouth
It looks like a 65-67 Plymouth Belvedere/GTX / Dodge Coronet R/T
THAT'S WHAT IT IS A 60'S BELVEDERE, NICE THANKS. THAT WOULD BE A GREAT PROJECT CAR TO HAVE.
I DISCONNECT THE EGR SYSTEM AND MY ENGINE IS WORKING GOOD AND LESS HOT.
What year u got..is your check engine light still on?
Ivan the Genius!!!!
My car is idling up n down at stop signs and almost stalling I have code p0401 2012 lancer. You think this is my issue?
Great process of elimination, great video
Nice job
Man i have am 03 diamante vrx and the engine light goes on with the same 401 code. I can't seem to pin point a damn thing. The car has a new egr valve, new solenoid. Literally almost new everything. I even cleaned the egr pipe which had a lot of carbon build up. I'll need to go through every small hose again or just replace them to see what happens. Car shows no sign of weakness even with the 401 code, it's insanity.
2nd...Again...im still a winner though, I've used the exact same vac gun for years🤗....lol
I have that one too, and my car had exactly this problem just days sgo.
Whoop-T-DO
@@glenharper3136 ???
What is the ringing sound at 9:17
Egr valve diaphragm? Just guessing
My 2006 eclipse is doin this same thing...EGR everything is new an replaced an the check engine light won't turn off....does it take awhile for the car to reset an finally turn off?
Did you clear it with a scanner?
Help! So, like an idiot i used my lights to see into a garage i was working on for a couple days. I started the engine and let the alternator donits thing. Was driving fine (2000 Mitsubishi montero sport 3.0 ls 2wd) went to another job. Accidentally left door cracked. Battery dead. Client jumps me...and
..idiot...i removed positive first. Immediately after starting to drive there was a grinding noise almost like something was in my tire or coming off the axle. Went to pull over about a block up and all hell broke loose. First the srs light then abs light i go to brake and it doesnt, i press again and its like immediate insane hard stop then with my foot still on the brake it lunges. I throw it in park and take the key out. Got it towed home. Now, battery fully charged, fuses all checked and are good. Dont know how to check relays. When i tried to start it b4 the tow truck got there it was rapid clicking and nothing but still was able to roll my power windows up and lock doors and door lights all work. Went to start it at home after fully charging (10 month old) battery and not even a clicking sound. Nothing. What the heck is going on? Any help would be greatly appreciated as this is my only vehichle and its my baby. I basically rehauled the whole upper engine in the last 2 years due to egr codes which have now been cleared. All vacuum lines and hoses have been replaced. Spark plugs and wires (coils were good) valve cover gaskets and orings on spark plug wells cam seals throttle body overhauled cps tps pcv valve coolant flush oil change egr and solenoid all replaced ran seafoam through the vacuum and pcv new air filters new ac drive belt and tensioner pulley.
We need more diesels!!!
Commercials right at the climax point of the puzzle ridiculous This new monetary system they have is ridiculous no it’s not your fault
what commercials...... ad-blocking..
I love trouble shooting instead of just changing parts.
suprised that thing isnt a pile of rust dust
one of these days you'll slip up and call it a "throttle bottle" lol
Hose on vac pump has pinhole buys egr valve.
1st boom
Leon with the sniper comments hahaha
EGR VALVE IS NO USED TOAN ENGINE, INSTEAD THE ENGINE GETTING HOT DUE TO THIS EGR SYSTEM!
conclusion 1 through 999 lol
NO bonus footage !!!!! Unsubscribe...
Nice video.