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Jeep Grand Cherokee
#309 of 1069 intermittent starting
May 16, 2008 (12:27 pm)
I have a 1996 Jeep Grand Cherokee 5.2 v8. I am having intermittent starting problems. When operating normally, it starts right up, doesn't miss and runs perfect. I will start up almost immediately. Then every couple days, it won't start. It will turn over strongly, but just not fire ? This will almost always happen after it has been running. If I leave it for 20 min- half hour, it will start right up ?? In the morning, it always starts fine and will start normally for several days. Then I will run an errand, come out to start me car, and it just turns over. I leave it for 30 min or so, and it starts immediately? My car has 130,000 miles and it has just had new o2 sensors, an new convertor and muffler, and new plugs. Any ideas guys. Someone suggsted it was the crankshaft position sensor ? Any help appriciated . Thanks
#310 of 1069 Re: 96 Jeep GCL 4.0 Shudders under acceleration. [artco96]
May 16, 2008 (1:06 pm)
Most likely plugged up catalytic converter.
#311 of 1069 Hard Starting
May 29, 2008 (9:46 am)
My wife has a 96 Nissan Pathfinder. You put your foot on the brake, bump the key, and it starts right up. First time.
My 98 JGC...not so good. I find that I usually have to crank the ignition and at the same time give it gas, perhaps halfway down on the pedal. Usually it starts first time although after a couple of seconds of cranking. If it doesn't start first time then it start immediately on the second try; but you can usually smell a little gas. Once it starts first time or second it runs fine.
I thought most late model cars were supposed to start like the Nissan with the foot on the brake, no gas applied.
Am I the only one with this issue? Could there something wrong with a sensor or something? The car isn't throwing any kind of code that would trip the engine light.
#312 of 1069 Ignition switch doesn't work
Jun 01, 2008 (5:45 pm)
I have a 98 Cherokee Limited with 50K. The ignition switch will not turn, nor will the transmission move from Park to Neutral. Steering wheel is also locked. Newer battery and electrical seems ok. Any ideas?
#313 of 1069 Re: Hard Starting [j98wood]
Jun 01, 2008 (5:49 pm)
Tried starting by putting foot on brake and cannot turn key. Took foot off and same thing. No dashboard lights because ignition has not turned at all. It is still in the lock position.
#314 of 1069 Jeep Grand Cherokee Wont hold Idle
Jun 03, 2008 (2:38 pm)
I have recently encountered another problem with my Jeep. I went to start it the other day, and it would crank as if it were trying to kick over, but wouldnt fully kick over. I know its not my battery( I have two optimas), and a new starter. I did manage to get it to start if I pressed on the gas pedal and would remain running as long as I had my foot on the gas. I have smelled a strong odor of gasoline when I stop trying to start it, So Im not sure if it has something to do with any of the sensors or If I may have a vacuum leak in one of my hoses causing it to not remain in idle. If anyone has any possible solutions, I greatly appreciate it.
#316 of 1069 Re: 96 Jeep GCL 4.0 Shudders under acceleration. [hydrogeo12000]
Jun 04, 2008 (7:39 am)
Not the fuel pump or catalytic converter. Your Jeep runs awful at highway speeds but is just fine from stop and go traffic means your car is running lean. What this means is you have a vacuum leak. A vacuum leak is easy to find but can be harder to fix if you go the expensive route (more later). With the car idling and hood up, spray some brake fluid around the engine in small spurts until you hear the engine rev higher. That is where your vacuum leak is and is sucking in the brake fluid and putting it through the engine to fire it up for that second. Cheap way is find the hole and duct tape it. Try black tape as to hide it. I did it to mine and is running great for over 2 years now. Or more expensive you can put in a new seal or tube.
#317 of 1069 Re: Jeep Grand Cherokee Wont hold Idle [mikeysjeep97]
Jun 04, 2008 (7:50 am)
throttle position sensor everytime. Its on the top of the engine closest to the windshield next to your throttle body. Costs around $30 dollars at Advanced Auto and takes 5 minutes or less to put on. Unscrew the old one and screw in the new. Just make sure the insides match up when you slide it on and don't force it.
#318 of 1069 Re: 95 Jeep Grand Cherokee idles rough! [kerry6]
Jun 18, 2008 (9:22 pm)
I have a 97 JGC. It has several problems. One of them was like yours. By disabling vacuum to peripherals I isolated this problem to the evap canister purge solenoid. A good indication is if the problem does not appear during warmup. My manual says computer does not energize solenoid until engine warms up. I replaced solenoid and problem went away. I couldn't believe it ! If you have one, check it. Be careful if you replace it. It's real easy to pull the hose off of the canister while you are trying to remove the line from the solenoid. Mine is behind bumper cover. A real pain to reconnect it.