FIX!! Dodge/Jeep 5.2L Rough Idle Issue
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- Опубліковано 11 лип 2017
- Was called to come diagnose this vehicle today. This video should help you if you are experiencing a rough idle or stalling condition with you Dodge/Jeep 5.2L engine. Let me know what you think!
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I'm glad you were able to clean the TB by spraying at a distance. Sometimes they can get so dirty that you need to dip a brush in Seafoam and scrub off the sludge.
Exactly what my truck is doing. Thanks for the volt data, gonna check that and clean the throttle body. Been a while since I did that. Lol
I had the same problem with my truck. just take off your throttle body off, and take everything off the throttle body and clean it.. if you clean it and put everything back on right, it will work great I promise you.
These older vehicles idle screws tend to wear down a little after years of being hit against by the throttle bracket. It only takes a slight adjustment to get it back into spec. And yes, cleaning the throttle body aids in helping the system correct for maladjustment, but reducing the amount of work it needs to do keep the engine running right could be a better option. When testing my '94 Dodge, even though it ran ok, the minimum air flow idle brought it down to ~300 rpm and almost stalled. (This was tested with a MT2500 scan tool). The correct minimum idle should be a lot higher (550-800), other wise your idle air bypass control motor has to swing to far to fast to make up for the air the engine is not getting from the throttle plate.
my BT scan tool AP200 and my ELM327 both say it idles at 723-725 rpm when it running right
yes the tps sensor can get stuck. but usually stall low idle is caused by a stuck IAC valve from carb buildup. take it off, clean it with b12 chemtool, clean the valve seat. if you still have a problem, it’s probably the egr valve, stuck open.
Dirty throttle plate is a common problem, especially on this style air cleaner. Air box gets installed wrong, and or damaged gasket lets dirt in. It's best to shut off engine, open throttle plate and spray carb cleaner. Use a rag to clean, repeat till clean. Don't drown the engine with puddles of cleaner. Engine can be damaged. May have to hold throttle open to restart.
I replaced both idle control valve and tps, And still had erratic idle , I have a super chip on my truck and my buddy suggested that I disconnect that ,and see if it’s doing the same ... my issue was resolved now less 60 horsepower ... but I’ tell yah months of being pulled thru lights , high revving at light , having to turn engine off three four times at a light sucked ....mine would hold at 4000 rpm when I revved, I’m also thinking the plenum gasket is due and this spring I’m hoping to have it all straightened out .....
Okay I have a couple questions what side of the truck is your evap canister on and where does it run to? And is yours equipped with a leak detection pump if so how are those lines Incorporated? If not then how do the lines run?
I have a 1995 Dodge Ram 1500 5.2ltr that occasionally bucks and tries to stall going down the road but idles okay it’s all I have and I live on social security so I don’t have the money to take it to a shop and say “fix it” . Can you please tell me what you think I can replace that might be the problem ? I’m stuck in Louisiana and need to get home to Texas…. Mike
I have a 2000 ram 1500 5.2 an mine stalls when i come 2 a stop I've changed the idle control valve an the throttle position sensor an the air filter an has a new battery but has no exhaust on it. Could the problem be it needs a whole new exhaust system 😀
What setting do you set on the multi meter ?
I love my 5.2 with the rebuilt 318 in her
There's a grey gasket that sits on top of the throttle body that goes under the air box that will help dirt and debris stay out the throttle body and I'm sure it keeps air out also. I didn't see one on yours just thought it would help.
I have the opposite problem mine idol's too high I've changed every single sensor throttle position sensor map sensor air control valve sensor and it's still idling too high it doesn't want to drop down
I have a 93 Dodge Dakota with a 5.2 mine idols like this on a cold start and when it’s cold until it finally gets warm could this fix the issue also I’ve had it die on me when I put it in gear because it was not warm enough yet ?
I have a Dodge b250 van with a 5.2 n it would also die with a sudden throttle shut. All I have to do is let it warm up a little longer too.
is the magnum 318 a tuff motor
Might have the same problem (same symtoms) with a vacuume leak. Years ago I pulled loose a tiny hose in that area to get a part loose. Might have forgot to put it back. Also might need new IAC valve by now.
Wow with it having 243k on it it runs pretty damn well 👌
Mine has 361k and runs strong. All you gotta do is stay consistent with oil changes and regular maintenance.
When you sprayed the carb cleaner into it like that, where does the gunk and crap you cleaned go? Does the engine just burn it up?
Yes burns it and or spits it out the exhaust valve (hopefully and most likely).
Yes. Burned. Never to to seen again.
how much HP does the 92 5.2 have
I know this is a long shot but my 96 Ram 1500 idles just fine but theres a noticeable vibration on take off from 0 to 15 mph. I dont have a check engine light on so not sure what to else check aside from spark plugs . .
I have a 98 and had vibrations at 45, I replacesd spark plugs, wires, etc... (complete tuneup)..... friend thought my harmonic balancer needed to be changed. I was getting ready to do it. But one day decided to clean my throttle body out. After taking my throttle body off to clean it. I saw my IAC was gunked up. Took the IAC off and cleaned it with throttle body cleaner, reinstalled everything and no more hesitation... try cleaning the IAC or putting a new one on....
95 5.2 liter v8 dodge ram 1500 just replaced spark plugs spark plug wires and cap and rotor it idled and ran fine before just ruff start thats why I changed everything now it revs up and down on its own really ruff then kills itself any idea did I hook something up wrong ?
Same here. Still chasing the issue. Hope you figure it out.
I’m still working on it.
Mine makes this weird noise when it warms up while it's in park but only does it in park. Idk what the sound is coming from but it's annoying
My 94 Dodge wohhles at mid / high speed. The front tires are balanced. Any suggestions? The idle video is helpful too. Thank you.
more fiend start by replacing all of the rubber bushings upfront. If you look under at your linkage and see that they are cracked, then they need replaced
They call wobble of death 94 to 2001 dodge ram look some videos with this name and you will find out
Just a question if you experienced this. My 5.2L runs fine cold. Starts idles and runs fine. But after it is warmed up after a slight 3 mile drive in gear it wants to stall. You can feather it and keep it running but a more than likely going to die. If you keep it running and you put it in gear and lightly bring it down (rpm wise) it can stay running and idle but not like it does cold. Any ideas let me know. Thanks.
Did you figure it out
@@keaganherman899 My Dodge Ram is slow work in progress. Since I have other vehicles to drive and on a limited budget, I am gathering parts. My biggest issue is cracked heads. I have a set of replacement heads I bought. But don't want it get into the job until I have all my parts. I know alot of my problem is those heads. It has a miss and cracked heads will do that. The temperature got very very hot. Issues started with hitting a deer at 55mph. And just snowballed from there.
@@torquewisdomgarage update?
@Lignum Domini A different engine is going in that I bought. I only use it on my property. But developed a engine leak at the back of the engine. I just have to get the other engine home and on a stand. Then going to go through it. Then just do an engine swap with Aluminum heads,intake,upgraded cam. Going to start my own UA-cam series on this truck. Never been in front of the camera. But going to get used to it.
Hey that wire that goes into the fire wall I broke when o changed the plugs last year you think that my problem? I got codes po172, po442 and po455
I would definitely fix any broken wires then diagnose from that point
@@TheFeesher shoot i don’t really know what it’s called either but I had broken for like year had no issues tell the other day check engine light came on
I have a 92 Dakota with a 5.2 it runs good at times then die at a stop light what do you think the problem is.
Did you figure out the problem?
Could be your throttle body first clean that, second ur idle sensor and your crank sensor you might need to replace that. I got 5.2 jeep every time I clean my TB its fine. Mine easy to get dirty because I have a cold air intake
Where is the temp sensor? I'm looking at the upper rad hose, at the thermostat, beside the housing, there is 2 sensors and a bolt plugging a hole, I have an extra wire plug... temp gauge not working. Hard to start without stomping gas pedal... dies until operating temp... I have this exact engine... Please help me.. Can you take A pic of yours
Its by the front of intake manifold its kinda hidden
94 and 95 have two sensors. 96 on up have one temp sensor. On the pre obd trucks like the 94 and 95 trucks if you don't have both those sensors plugged in your computer and the gauge will not get signal and will run like shit
And never go into closed loop
I got a 97 dakota 5.2l I questions could I like contact you to explain?
Hey I have the same truck as you and the same issue as this guy but it didnt work.. did you ever figure yours out??
My 5.2 shutters when at a constant speed usually between 55 and 65 itll jerk as if its getting shut off from fuel or something. Any insight on what it may be? Already replaced TPS and IAC
I'm having the same problem on my 1992 dodge ram b250 van. My next move is to change the fuel pump.
Did you ever find out what it was? Mine shudders when TC is locked up at around 17-2000rpm. Also a shake at idle and exhaust pops when revving.
I would assume is the TC
Pull individual plug wires and see which cylinders don’t change the idle to find your misfire at idle
@@TheFeesher it only got worse after I changed plugs, rotor, cap and wires. Don't know why. Cylinder 8 plug was oily, and it got the lowest compression (145psi) all the others got 155-165psi
I have the same tuck and it dies when put into gear. Already replaced IAC
Throttle position sensor bud. Had the same issue
I've cleaned throttle body and changed all three sensors after I changed the 02 sensors my problem started with rough idle and acceleration and shifting issues what is my problem
I have a Similar issue on my 98 5.2L
@@randalb1191 put the old O2 sensors back in and it will stop
@@simonwilson3962 i havent changed mine yet. But rought idle just started and it will drop down like it's ready to die then rev back up. So was seeing around the world what some issues are. Plus I have that dam magnum knock that I havent dealt with..lol
@@randalb1191 the magnum is a way better engine than the LA engine and they have a knock because of the valve train it's a hydraulic roller with the pedestal mounted rockers
@@simonwilson3962 I bought a lifter to replace it because that's all I saw about the knock was replace the lifter.
I have to try that on my Dodge mine does the same thing just bought it too
This sounds like an exact problem like my 5.9 Durango I'm going to try it but I kinda think it's not going to fix it just cause of my bad luck I'll let you know when I try it if it fixes my problem.
Let me know how it goes!
@@TheFeesher didn't work for me
transam8607 take a look at my most recent video and tell me if that’s the problem you’re having. I’m struggling to figure it out as well
@@kbgt1523 im still struggling to fix it I've even rebuild the engine and it's still there 😫 but I did get closer to the problem im getting misfires cylinder 1&2 mostly 2 fuel injectors plugs have some corrosion and whan i move the plug around it go's away and all these years I couldn't figure it out I never got a code for but the snap on computer picked it up I know it doesn't really make any sense
@@transam8607 my issue was the o2 sensors. The previous owner had chopped the exhaust system off including the o2 pigtails so I replaced those and it starts and runs perfect now. These motors do not have a maf sensor. They use mostly intake temperature and o2 sensor readings from what I’m told to adjust fuel ratios so the o2 sensors are super important. It’s worth a look
I had a similar issue where my 95 dodge ram 1500 could do the highway okay once you got there but could hardly idle. turned out to be the EGR after 2 months of chasing ghosts with sensors and throttle body. Didnt even need tools to replace and the truck immediately ran like new after i put in the 20 dollar replacement. maybe let this help someone with the same problem
I will try the egr as will I have a 5.2 Jeep always have idle problem and I change about 3 tps and iac so I will have to try the egr and purge valve.
@@Platinumtag yo what did yours end up being, I have a 97 Grand Cherokee with the 5.2 and seem to have the exact same problem as what the guy in this video had
@@keaganherman899 pull a vacuum hose facing passenger side front wheel.... That should help.......if not mind turn out to be alternated I sold the vehicle and mechanics replace it and still going strong. But it's was my iac when it didn't want to start I remove the entire sensor and it start rite up. Some people install homemade iac which they manually control how much air goes in the engine so it idle consistent. So u have to try which one works for u bc its common issues
I've been having the same problem with my 99 Durango. It starts up perfectly fine but I have to keep my foot on the gas to keep it running cause when I take my foot off it stalls. It was some how able to fix itself but this is the 2nd time it's happened since I've gotten it and I don't want it to be goofing up on me at work cause I work late and that's the last thing I wanna deal with. Do you think my problem could be similar to yours because I really don't want to drop money on it because it's my first car I bought myself and I really can't afford an expensive fix.
If it stalls out after you rev it, or if you have to use the gas pedal to catch the rpms when they fall to idle speed.....but then can slowly let off the gas and it will stay running, then it's highly likely that you need to clean your Idle Air Control valve and throttle body, or your IAC valve might just be bad and need replacing. Both these things are relatively easy to do and cheap. Check out UA-cam videos on it.
Help me please
When cold in park left running it will idle and sound cammed and choppy and throttle response is way off when cold you'll barely give it gas and it acts like you gave it more gas
And also it used to dip down but I fixed that somehow and also the idle goes up as it gets hot
I had a similar problem and mine was the IAC valve, it also sounds like it could be 02 sensors and be running rich. Smell the exhaust (don't breath it directly in, waft it to you or put your hand in front of the tail pipe and smell it) if it smells like gas, it's probably running too rich. Also have you replaced the plenum, and/or checked for a plenum leak?
@@SoapJuggernaut my 97 is the same way, it smells like its running rich. I replaced the upstream o2 and its still choppy
zLotto interesting 🤔. Did you ever solve the issue?
@@SoapJuggernaut its at the shop now ill keep updates if it gets fixed
My 93 dakota 5.2 does it to. Mine is stuck open injector on #7 cylinder. Smells crazy rich and chops when cold started. After warm up, purrs like a pissed off kitten (single straight pipe no cat or muffs) 😁. Also the air charge temp sensor could be bad. It makes big difference on how the engine idles from cold start to operating temps.
I got the same truck, but if I tap the gas it idles high then low , to low where it kills sometimes .. if you can throw something at me cause I’m lost.. gonna do what you did here (or at least try ) TY for the video
If you havent figured it out yet. Possible reasons tps iac or act (air charge temp sensor) located next to t-stat housing. Had a 2.5 in my dakota that done that changed the charge sensor and problem solved same on my 5.2 i swapped in place of the 2.5. Lot of ppl dont think about the charge temp sensor causing idle and driveability issues as well.
Same exact issue and symptoms currently, any fixes to this are welcomed I've done a fair amount. Idle normal in park till warm shift into any gear idle normal 10 seconds then drops rpm 200-250 revs it stumbles almost kills engine. Revs itself 200 then repeat. Trembles in any gear trying to move sounds great and normal in park until engine is both to temp and tranny was engaged
What do you think about the fuel injectors cleaner you add to a full tank of gas. You think it works
I’d suggest the through the rail fuel injectors cleaner, personally
My 2000 Dodge ram 1500 trying to die when I shift into reverse but that's the only time but it doesn't do it all the time
My truck would do the same i added some transmission fluid and it fixed
What was your fix on that prob?
i have 5.9L kinda simpler problem its cranks several times before it starts on a cold start, then out of the blue its just idles lower and lower then dies, on the 2nd start it starts up on the first crank.
I’d definitely try cleaning the intake, super cheap attempt
@@TheFeesher thanks its been cleaned and the TB. i just did a major tune up including timing chain. several wires and sensors and air breathers.
@@TheFeesher my last ditch effort is gonna be replacing the 02 sensor the map tps and iac. if this doesnt fix it then im totally hopeless
Try the idle control valve
@@joeydelmarsjr.646 I heard the o2 sensors can make it run like crap
...I wish someone made a video on the 1988-1991 5.2 TBI ...I am having rough idle, stalling/dying when putting it into gear...tried everything I can think of....when I google or try UA-cam videos, all I can find is stuff on the newer (Magnum) engines... :(
Them 5.2 tbis are sadly a generation of the old :( but most likely with a tbi it's probably something electronic
Its probably the idle screw mechanism on the tbi
I have one, pain in the rear. But I do know your speed sensor will mess that up if runs fine and instantly does in drive. But could also be torque converter ect. Problem with the tbi is if one sensor(i.e. coolant temp sensor) goes out it will mess up your idle or even no start. I've replaced almost every sensor, torque converter and runs fine cold, looping idle(like vacuum leak) warm. So I'm right there with ya.
Replace the ideal controll valve on back of the intake it will idel
My 5.2 takes for ever and a year to warm up all the way.
Put a piec eof cardboard in the radiator space to block airflow. Had to do this in Northern winters occasionally to help it keep a good running temp.
Tried that and it didn't work.
@@collinwood6496 You may need a new thermostat
Nope. Already done. I replaced the thermostat, plugs, IAC, TPS, intake plenum gasket, intake gaskets. It's underpowered and has a little rough idle as well. Fuel pump was replaced by my dad before I got it. It's a 95 tith only 96000 miles. I'm going to replace the wires and replace the entire distributor. I know it's just shooting at stuff but it doesn't have an obd2 port and the only code coming back is the egr wich I deleted. Had the same problem before I got it too. My dad could never figure it out he said it just started being under powered. Might see if the cat is plugged with mud too. Eventually I'll spend the money on a diagnosis.
Pulseing when engine hot
It's a 99 ram 1500 5.2
I got a 98 Dodge Ram 1500 it shut off when u turn the coner
I have a Durango with a 318 and shes been sitting for a while and we things it's the idle air control and we thought it was a blown head gasket but the plugs weren't wet and there wasn't coolant on them so we dont think it's that and it smokes hella
@@Toothless69420 look down thru th throttle body while holding th throttle open and ee if you see oil in th bottom of th intake thiers a plate on th bottom of th intake that notorious for blowin out and letting it suck oil outta th crank case. Burns oil and won't idle worth a dam
I like how you zoom in on the T25 bit but not what you're actually working on LOL
The important stuff
Haters gona hate 😂
@@dirtykingsgaming aren't u a baller
O yea I just shit out money every morning 😂
I just take the aic complete off and spray mass airflow censor cleaner until it looks clean.
But this seems legit too .
Did you clean the area where you removed it from?
Also, did you spray down into it, like everywhere except where the harness goes?
Will this help a bouncing idle?
Not always, but there is a good chance it will
Do you by any chance happen to have the diagram of the vacuum lines? I am having some issues with my 1995 Dodge Dakota V8 Magnum 5.2L (318) engine.