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Jeep Grand Cherokee Maintenance and Repair

4608 messages,  Last post on Nov 30, 2009 at 11:06 PM

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What is this discussion about? Jeep Grand Cherokee, Jeep Cherokee, SUV

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#4417 of 4608 Re: Exhaust fumes/check engine light in my 1997 Jeep Grand Cherokee Limited [newtojeeps] by frumunda Mar 17, 2009 (2:30 pm)
Replying to: newtojeeps (Mar 16, 2009 6:04 pm) Ok...so you replaced the thermostat and now the system is probably working like its supposed to...now that the coolant is being regulated the ECT(engine coolant temp)sensor is finally noticing that the coolant is either getting warm/not getting warm and is sending that information to the ECM(engine computer) telling it "WHOA!! Its not running rich/lean enough!!! ADJUST! ADJUST!). I'm thinking that now your mixture is running too rich and thats why you are smelling fumes...through the LOVELY cracked manifold. What makes matters worse is that with that crack, the manifold can suck in oxygen, thus leaning out the mixture at the O2 sensor and tricking the ECM into thinking you're running too lean at the injectors...ergo, too much fuel and a really nasty odor. It can also cause your catalytic converter to start loading up and deteriorating. This is what I'd tell your technician. Its like the snake that eats its tail. If you need me, send me an email at brianjoe69yahoo.com. I'll help you more if need be.   Brian
#4418 of 4608 Re: 1998 JGC front end squeaking and noisy transmission [trek87] by trek87 Mar 18, 2009 (4:07 pm)
Replying to: trek87 (Dec 14, 2005 2:04 pm) just a long overdue update in case anyone searches and finds this thread...the squeaking was my serpentine belt. it turns out my belt tensioner was worn out and had to be replaced. the squeaking was due to improper belt tension. a simple repair.   went ahead and replaced all 4 shocks and man, what a pleasant improvement on all-around ride and handling (esp. on turns - not nearly as much lean). well worth $40/mopar shock. Replies to this message: clipkarn (Mar 18, 2009 6:21 pm) mtbventana (Mar 25, 2009 3:34 pm) trek87 (Mar 25, 2009 5:15 pm)
#4419 of 4608 Re: 1998 JGC front end squeaking and noisy transmission [trek87] by clipkarn Mar 18, 2009 (6:21 pm)
Replying to: trek87 (Mar 18, 2009 4:07 pm) Aint it great when your efforts have great results? Hooray --- Clip
#4420 of 4608 Re: 1998 JGC front end squeaking and noisy transmission [trek87] by mtbventana Mar 25, 2009 (3:34 pm)
Replying to: trek87 (Mar 18, 2009 4:07 pm) is that $40 for the set or $40 per shock? Replies to this message: trek87 (Mar 25, 2009 5:15 pm)
#4421 of 4608 Re: 1998 JGC front end squeaking and noisy transmission [mtbventana] by trek87 Mar 25, 2009 (5:15 pm)
Replying to: mtbventana (Mar 25, 2009 3:34 pm) $40/shock
#4422 of 4608 1995 jgc chugging by axe101x Mar 27, 2009 (1:30 pm)
ok i have Just Emptied Every Pocket (jeep) replaced ccps,tps,radiator, put electric fan on, new power steering pump, new hoses,new water pump, new transmission, new fuel filter, Spark plugs,cap, rotor button, electonic pick up under rotor button now my question is when i drive normal it is fine but as soon as i try to pass it starts chugging like i'm going on and off with the throttle. Also does it in park idling and throw the throttle to it full and it does it just like before what could this be? fuel press. reg.? fuel injectors, electrical, cat conv? Got any ideas. Please help its our only vehicle Replies to this message: neb1997 (Mar 27, 2009 1:47 pm) mtbventana (Mar 28, 2009 10:06 am) sixdays (Mar 28, 2009 10:23 am)
#4423 of 4608 Re: 1995 jgc chugging [axe101x] by neb1997 Mar 27, 2009 (1:47 pm)
Replying to: axe101x (Mar 27, 2009 1:30 pm) I had this issue. Mine would chug like this when passing and eventually when I was just driving down the road normally. It was the o2 sensor. I think the part was the upstream sensor, located before the cat/converter. The part was around $70. Go to a autoparts store and use their computer code reader. You should be able to pick up an error code if the sensor is bad.   The chuggin freaked me out and I'm so happy it's gone.
#4424 of 4608 rep by axe101x Mar 27, 2009 (1:50 pm)
there is no check engine lightr on and it doesnt come on when chugging anything else Replies to this message: clipkarn (Mar 27, 2009 3:18 pm)
#4425 of 4608 Re: rep [axe101x] by clipkarn Mar 27, 2009 (3:18 pm)
Replying to: axe101x (Mar 27, 2009 1:50 pm) Maybe too rudamentery, but have you replaced the fuel filter? Also, if you have access to a fuel pressure gauge, you might get some clues there. The reading should be constant even when you rev the engine. If not, you might have a tired fuel pump, clogged filter, or dripping (leaky) injector seals.   Good luck --- Clip
#4426 of 4608 HELP by axe101x Mar 27, 2009 (4:19 pm)
new fuel filter none of the injector seals leak found a leaking vacuum line fixed it but still acts like it loading up or hitting a rev limiter sometimes it will pop back thru carb(throttle body) please help me i need this fixed. no codes on scan tool motor or trans. it will only go to 3500 rpm's before it acts up. Replies to this message: animal2 (Mar 27, 2009 7:05 pm)

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