1990 Cherokee 4.oL str 6.
I was checking oil and noticed fuel smell in oil. lot of short trips but also driven til hot at least a couple of times every week with long rides weekly or bi weekly.
Also smelling gas on start up and first minute or so. Some fuel smell in exhaust. The jeep runs well.
I have a 1987 jeep cherokee with inline 6 and multi port injection.
Sometimes this vehicle only starts when hot
Some times only when it cold
I have recently fixed the fuel leak.
When its hot or cold and not starting if i relieve the fuel pressure at the fuel rail, in most cases it will start immediately. However if fuel pressure relief does not work. I disconnect the vacuum line at the what looks to be the EGR valve or the pressure regulator at the front end of the rail, then usually starts right away.
I have not tested at this time to see if the fuel pump is failing nor have i tested fuel pressure. I am trying to narrow down the problem to one specific part. There is no problems with cranking. There is spark - coil, plug, dist cap have been replaced.
It seems the problem is with fuel delivery of sorts. It was mentioned that sometimes the heat from the engine could be heating the fuel rail to a point which turns the fuel into a gas not allowing it to atomize.
1998 Jeep Cherokee sport ... My mechanic tells me that my #1 fuel injector is always spraying and that that is why the jeep runs rough. This is after he already told me that my injectors were clogged and needed to be replaced (which he did). When the car is idling for a while, the exhaust really begins to smell like gas, so this seems to make some sense to me, unlike his previous diagnosis. But now he is telling me that I need to replace the computer to fix this problem.
View 8 RepliesI purchased a 1990 Jeep Cherokee Laredo at a steal . . . I've already replaced the head gasket sealant. My biggest current concern is the fuel pressure. The car either starts up beautifully or sputters and gurgles for a good 5 seconds before finally idling normally (either occur during cold or warm starts).
The sputtering at start-up has become more commonplace as of late. If I drive away without providing a good three-to-five minute warm-up, the car will drive as normal while applying gas pressure to the peddle, then once gas pressure is no longer applied, the car dies silently; The battery stays on, but all power steering and engine power disappear and the car coast into nothingness. If I allow the Jeep to warm up significantly, it will drive as normal for hours, except for it's struggles to compensate long upward hills.
The fuel regulator has a slight leak. Worse at start-up, lessens up over time. The seal may be improperly seated, but is in physical working condition as I can tell. Spark plugs were replaced. Battery was replaced. Injectors have been tightened. There is a slight oil leak (it seems to move around a bit), but is far better since the Head Gasket was replaced. Could this be a bad fuel regulator or something else that I have missed?
What would cause a 1999 jeep cherokee 4 liter inline 6 to backfire every now and then.
View 1 RepliesWhen cranking, i have to give it gas and rev it til it smooths out. Eventually it will run smoothly. When i throw it in gear, it wants to sputter and die out. If I put in D, i have to give it gas or it dies, but I can only barely touch the gas or it dies out. There is a vacuum leak in brake booster, but ive been told the headgasket could be blown.I want to know if the head gasket could be a problem and if its worth replacing the booster.
View 2 RepliesSo i have a 1999 Jeep Grand Cherokee Laredo, 4.7L v8 , it has been running good until as of lately. It has stalled or died on me 3 times, I can usually drive it for about 20 minutes, or travel short distances before it stalls out on me, the stalling is completely random, any speed/RPM. I have read everything under the sun about what could be wrong here, but where to start, have been hearing a lot about new Crankshaft sensors, TPS's , etc...
View 14 Replies1999 Jeep Cherokee Limited, 4.0L, 4WD, I-6, 199,000 Miles Every once in a while, after I start the car and drive maybe 50 feet, the jeep will sputter and have trouble accelerating. I push the gas peddle and it sputters (kind of jerky motion) and doesn?t increase speed. If I remove my foot from the accelerator and press slowly back down (I have to repeat this usually about three times before it works), it ?fixes? itself and drives fine. It only happens shortly after starting and it only occurs occasionally. Nothing in the fuel system has ever been replaced, including the fuel filter (because of its inconvenient location).
View 4 RepliesMy Jeep check engine light comes on man said it was a EVAC problem...is this a multiple sensor issue? yes I checked the gas cap
View 2 RepliesI have a 1999 jeep Cherokee there is no check engine light on. But the air bag light stay on. I scan for a code it gave me a ( p.0.1698). What that is. My code scanner only go up to p.0.900...
View 2 Repliesabout 2 years ago, my 99 cherokee would start acting up at about 1/4 of a tank of gas...i would hit the throttle and it would lose all power like it wasn't getting any gas, it wouldn't stall out, but as soon as i would let off the throttle it would go back to running normal..... i filled the tank and it ran fine again.... i don't drive it much i've only put maybe 3000 miles on it since then, and now it's doing the same thing at half a tank now.... it even stalled out a couple times while idling..... do i need a fuel pump? a coil maybe? it usually runs great in the mornings when it's cold.... but when it gets hot out in the afternoon it starts doing it, or if its been running for a while....
View 10 RepliesMy 1999 Jeep Cherokee, 4L inline 6, has a very weird problem. Usually, after starting, it runs well for around 10 seconds, during which time I back up and get ready to leave. Then when I switch to drive, it starts to run poorly, having no acceleration in speed or and very little in engine rpm, until I stop using the brakes. Exactly when the suspension relaxes, the idle returns to normal and it runs perfectly after that.
Sometimes the rough running starts while I'm backing up too. So I don't think it related to the transmission. But all I have to do is completely stop, and then it runs great from then on.
This doesn't happen every time, but probably 60-80% of the time. It's been happening for about 2 months now.
1999 Jeep Grand Cherokee 4.0. Check engine light will not go out. Took to Autozone , Orileys ,and Jeep Dealer. No codes found. Replaced cooling fan relay, when light first came on. Everything works fine now. Have tried myself to shut light off, disconnect batt. cables 10 min, 30 min. and other methods, no luck , still, on ? I have even traced the cooling fan relay wire to PCM, all OK.
View 3 RepliesMy husbands jeep is driving him crazy. He drove it to work and started fine. Then went to start to come home. Nothing. No crank, no click, nothing. Towed home. Battery OK. Anyway, he put new starter on. Started up. I drove it to station. Got in to come home. Nothing. Same darn thing. We jumped it. Pushed it out of way. Started. It's done this many times. Let me say, though, he went through a huge amount of water before this happened. Gauges went nuts for a while. Don't know if this could've messed up a sensor. He's losing sleep over this.
View 1 RepliesWhy am I losing coolant out of overflow on a 1999 jeep Cherokee classic for ?
View 10 RepliesA year ago I replaced radiator, long job in the winter in an unheated garage. After radiator was successfully replaced Air bag warning light started to come on intermittently. More so in cold weather, less so as it warms up. I know you have to be very careful working on air bag system, disconnect the battery and wait 10 minutes. I have heard that this is a known problem on Jeeps, this is a 1999 Grand Cherokee with 150,000 miles. I think ti ha something to do with connector in a dash, what can I do, a car is on its last legs, will not spend money on a dealer to fix, ripped off too often during life of car. I am afraid it will not pass an Ill environmental test (not related to pollution control) I suspect it is setting a trouble code but have not checked as of yet, hasn't warmed up in Illinois yet this year.
View 2 RepliesI have a 1999 Jeep Cherokee Sport v6. I have replaced the fuel pump, fuel filter, Battery, cables, alternator, distributor cab, and plugs and my car keeps stalling out on me. It drives and idles just fine but when I am driving or accelerating the vehicle dies, I let up off the gas and it restarts itself. When I hook it up it does not read an error code!! Not sure what to do next.
View 2 RepliesI have a 1999 Jeep Cherokee Sport, 4.0L (6 cylinder) that has 128,000 miles on it. Within the last two months it has started lurching 1 to 3 times per week. It only lurches once but always when the engine is hot and when accelerating. The engine light does not come on. It also loses power for several seconds at other times. Lastly, it has stalled two times in three weeks when I am coming to a stop. The spark plugs and air filter were changed last week. The injectors were also cleaned.
I do not have the skills to fix it and am taking it to the dealership which is very expensive - thus the money drain. Any thoughts on what might be going on? Or is it better to just cut my losses and look for another car. I would really like to keep this car for another year because I am in graduate school but am not willing to continue with the money drain.
What would cause the air bag light to stay on at all times in dash board.1999 jeep Cherokee 4.0 liter inline 6 I have a code scanner there is not any codes. and the jeep has not been work on.
View 8 RepliesThe Oil Gauge on the Instrument panel of my '99 Jeep Cherokee Classic is pegged fully to the right (TWICE the normal reading) when the vehicle is Stopped at a Light or stop sign. As I accelerate the needle drops down to NEARLY normal but pegs again as I decelerate to a stop. The engine sounds normal, operates like normal, no smells, oil level on dipstick is OK. What's up with this?
View 3 RepliesMy jeep is having two issues. First, almost every time I start the vehicle it idles fine, but then when I start to accelerate it bogs down for 1 to 2 seconds. I will accelerate through it and after that it runs fine and doesn't do it again until the next time I start the vehicle. My second issue is that after driving for a couple of hours with the AC on, the flow of air out of the vents drops. The air is still cold to the touch just barely blowing. Once I cut the motor off for about 30 minutes it works fine again for a couple more hours. Also, when the intensity of the air coming out of the vents dies down the blower motor sounds like it is working harder to put out the little bit of air pressure.
View 3 Replies