EVAP Purge Solenoid Testing
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- Опубліковано 18 жов 2024
- EVAP Purge Solenoid Testing
Disclaimer:
This video is not meant to be a definitive how to.Always consult a professional repair manual before starting your repair.I am not responsible for any problems that you might incur by watching or following this video.Follow at your own risk.
To all up and coming mechanics, electronics and whizz bang scanners and the like may be all the rage, but this is the type of diagnostic skill that never goes out of fashion, always start with the basics. Great video man.
Thank you so much. I fixed my 2002 SL1 "Service Engine Soon" problem just by looking at the plastic tube on my intake manifold. It was so loose it was hardly staying in place. I didn't have any PB Weld, so I just made a temporary seal around the end of the plastic tube with a little bit of grease and re-connected it. It sealed it up very nicely!
Thank you richpin06a!!!
I used your test protocol and it fixed an acceleration hesitation, noise in dash (for 3 years), gas smell and error codes P0441, P0442 and P0446.
After doing a vacuum (I have the exact same vacuum kit) and pressure test, I found a leaky EVAP purge solenoid hose.
After replacing the leaky hose and a few others, I drove the car for about 15 miles with the engine check light and VSV lights on, they didn't come back on when I started the car after the 15 mile run to the store!
I'm thinking the gas mileage will improve also.
Thanks buddy!
Thank you for a very informative, useful and easy to follow presentation. GREAT JOB!!!!
You are a wealth of information Richpin. Forgive me but I love the bloopers and look forward to your annual blooper video. Also, you have saved me money on corolla brake videos. Keep em coming !
It's great to see this done with just regular mechanic tools, especially when you showed how to repair this without buying new parts. Not everybody has a smoke machine.
Those are hands of a car doctor at work! 3:30
Another fine production Rich.
Thanks for your videos, Richpin. I like your friendly personality and also your bloopers (it's cool that you can laugh at your mistakes).
I say life is to short to let things bother you.
Love your videos they have helped me so many times, currently tyring to troubleshoot a P0441 on a '05' Dodge Neon
Cory Allred hey, I’m doing the same right now, do you remember what is was that fixed/clears the p0441 code?
Thanks
more than the do the test I thought you are testing the pump and when you found the problem you voice sound like this is what I looking for..BTW your test is really good..
You sounded very excited with this find, great video keep 'em coming
Great vid. Did the MIL show a evap code or did the car have a rough idle ?
Love all your videos as I am finally addressing issues in my 2001 Saturn Sc2. But I am kind of lost on this one. I can't even find that plastic tube you fixed or where it connects to the throttle body. My throttle box is on the other side ( for starters) and do not even see anything that looks like the first plastic clip you removed to test vacuum. Any advice?
Nice video. Questions:
1. Does the purge always happen on startup?
2. Are there other times that the purge happens?
3. Where you had the leak at the TB there are two holes. One for that line, and what is the other one for?
The 97s had a problem with the fuel pressure check valve not holding pressure.The valve is part of the fuel pump.
Up here in the northeast sometimes we find pools of oil under the car because the pans rust out from all the salt they put down,
I found my oil drip problem Rich. I had just purchased a new drain plug from Autozone, it cam with a very small diameter rubber O-ring gasket on it already and I installed it while doing an oil change in the driveway. Turns out that small O-ring gasket was not good enough to hold the oil in. I put a larger diameter drain plug gasket (same diameter as the drain plug flange) and the oil drip stopped.
Thank you Cleveland, very helpful.
One word of caution about JB Weld: if that plastic tubing is polyethylene or polypropylene, that fix is not going to be permanent. A special (expensive) adhesive is needed to bond PE and PP plastic.
Great video man..as always
Did you replace the filter when you put in the new pump.
i like the bloopers .....they are funny keep them coming
Great troubleshooting video!! Thank you!
Great video. I like the bloopers !
is that a new pump? where did you get it?
Yes it is how did you know.Got it from Amazon.
I just knew JB Weld was going to be part of the solution! What code was the car throwing, if any?
Wow, Saturns looked like they were fairly straight forward to work on!
very helpful THANK-YOU
Good job! Thanks for making this video:)
Great demo ... thanks for sharing !
Excellent explanation
Very helpful video
How could I know that Evap system doesn’t work correctly
Thanks
What are you trying to hold.
Rich, I have a 1996 Saturn SL2 I have owned since new and this car has never, ever left a drop of oil on the driveway. I just drove back from Las Vegas to Los Angeles and the next morning I noticed a 9 inch pool of motor oil on the drive under my car. I will be going out in a few minutes to check the drain plug and oil filter to make sure they are tight. My question is if there any other place on the Saturn SL2 engine bay that is prone to leaking oil that I should look for? Thanks.
great video rich I like the end
Love the bloopers!
I had the exact same problem. I used silicone sealant instead do you think that will hold?
Haha! I love how you add bloopers now.
That would explain the fracture (failure) of that part because polystyrene is readily soluble in most organic solvents, so gasoline would surely destroy it. I'm not sure if GM is dumb enough to use PS in an car's evaporative system.
excellent video!
I have 1997 SL2 with 142,000 miles, ran strong, everything operating except the following. Two months ago the car was getting 32 mpg, then the evap code set and the mileage dropped to ~16 mpg. Today I will be removing the spark plugs to see what they have to tell me. My Ford E250 get 12 mpg at curb weight.
I expected to find a fuel leak because that is very high fuel consumption without fouling the plugs, or black exhaust, but no, it is really burning that much fuel. Suggestions?
I have a question about the purge solenoid. In the video you checked one part of the solenoid with the vacuum and the pressure stayed. Do you have to check the other part of the solenoid as well to see if it it holds pressure too or just that one going to the trottle? So one goes to the trottle and the other to the evap canister? Thanks
Yes the other line goes to the canister so this part is basically a switch interrupting the flow from the canister to the manifold.
Thanks. But do you have the check the pressure of the switch's other line going from canister to the switch to see if it has pressure as well or is it just that one from the manifold to the switch as shown on the video?
I'm almost positive they cast those pipes out of polystyrene. I've worked with recycling plastics before and can tell from the composition of the line on my car that it definitely has the characteristics of it.
love the bloopers at the end =)
That's really cool video ..keep it up
I run into this aftermarket stuff all the time, there is always something that is not quite right.
Hi richpin I have a 2000 sl1 dtc "p0442 Evap system small leak." Could you do a video to address and provide a fix for this. Thanks so much for all you do. God bless.
Great video thanks a lot
Will do this test on a 2007 Hyundai Elantra and hope this will proof the P0441 OBD II Code! Muchas Gracias!
Hi, Is the procedure the same on the SOHC?
Thanks, you've saved me time and $$$
thanks....great job
Another problem is normal crank, delayed start. If I cycle the fuel pump twice it will start easier, while sometimes just a minimal crank will fire it up. Is there a check valve in the fuel pump or elsewhere in the fuel delivery circuit that can be replaced, or modified to accept a check valve? Once it starts it runs like a race car. I think the fuel delivery line is back flowing and draining into the tank, but I could be totally wrong. Any suggestions?
How much pressure you pump in?
richpin tryin to fix a p0442 smoked system found no leaks. used a professional smoke machine. commanded vent valve closed with scanner before smoking it. you have any suggestions? as it looks like your a Saturn expert!
Check the Gas Cap - New one under $10 - and EVAP hoses line for small leak.
Good luck.
good stuff
I think what happens is the fit gets worse over time.
How much vacuum should be applied, and how long is it suppose to hold it ?
Dominik good question, I've been trying to find out for weeks.
Dominik from what I've collected, like 1Lbs. pressure . I like there's a few pounds built in a couple had tanks I've seen that don't release pressure correctly
Would you believe there was no code.
Love your vid's!!!!!
.
Merrie-Merrie
There are codes for this leak.
@ George rivera, suggestions; Yeah you just wiped out three or more states worth of cars running proper on the evap. imagine that ! When plastic is such a durable ,long lasting, dynamic composition Wow!
When i see a small evap leak code the first place i look is the gas cap.
Mr richpin whats the name of the line you tested
@richpin06a great video man. now i must investigate this vac line and solenoid =D
I have 1999 Buick regal LS how i check if where is leaking at ?? i have code evap small leak !!
There was no code.
jb weld for the win
May be faulty valve pressure control valve
You do realize that you were pressure testing and not vacuum testing as a vacuum requires negative pressure.
Troubleshooting a po448 on a subie sti cleared po442 and 456
I grew sleepy after 2 min
heheh the bloopers