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SUVs Jeep Cherokee and Jeep Grand Cherokee Jeep Cherokee Start Stall Idle Problems
183 messages, Last post on Dec 04, 2009 at 3:19 PM
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Replying to: nikki07 (Sep 24, 2008 2:41 pm) the other prob dont have a clue |
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1st time post here. Thanks in advance. Have a 2000 4.0 L Cherokee Sport. Have been having a problem with rough idle as well. At first thought it may be a PCM memory issue. I found battery conections badly corroded so I replaced them and cleaned and tightened all grounds in engine compartment. Worked Good after I reset memory settings. Problem cleared up for 2 weeks as we ran through a full tank of Premium gas and fuel inj. cleaner. Now we are getting to less than 1/4 tank and the problem returned today. Runs great above idle. Now suspecting fuel issue. I have read the stepper motor issues and will give that a try. Was kinda wondering if I may have a filter/pressure regulator issue at idle. Am gonna try that as well when I get time. Does anyone have any other ideas?
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Replying to: bvisocky (Oct 28, 2008 11:05 am) |
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| I probably caused this - I am experiencing a check engine light suddenly as well as a high idle (2K) at start. This all happened after I detailed the motor. I also loosened and forgot to tighten the radiator cap during the same cleaning. I feel that I either have air in the cooling system which needs to be let out (not certain where the valve is for this) or I pulled a sensor or vacuum tube loose (which I can't find) or I broke the idle control valve. The truck only has 50K miles and is in perfect shape. I would appreciate any help. | |
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Replying to: dchez6969 (Oct 12, 2008 5:19 am) |
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My 1990 4wd 6 cyl. Cherokee has two cooling fans. One operates off of the belt, the other is electric. The electric one quit coming on. I don't know where to find the relay, or thermostat, or whatever triggers it. I am going to wire the fan directly to the battery to make sure it still works, but I need guidance once that is ruled out..
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Replying to: mmcrae (Jun 27, 2009 5:24 pm) Above info does not apply to HO engines - RENIX (Closed cooling system) only. |
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| Can anyone help me out with some troubleshooting? I have a 1996 grand cherokee 4wd v8, drove it to the store yesterday and when i went to leave it wouldn't start. I got it to start with the assistace of jumper cables and juicing the gas butthe second I let my foot off the pedal it would kill. It won't start without a jump or stay running without my foot on the pedal. I took the battery and alternator to Autozone and they checked out fine. Does anyone have any suggestions? | |
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I have a 1994 4.0 Cherokee standard 4x4, 238,000 miles. Starts fine when cold and runs great when rpms are above idle. At idle, say at a light, and after the engine has gone to operating temp, I get syptoms like flooding, misfire or bad gas. The longer at idle the worse it is. If I shut down the engine, it will not start until I let it sit for about 45 minutes. I have replaced plugs, fuel filter, fuel pump, fuel pressure regulator, and idle control in the throttle body. Gas had seafoam treatment, ran down till 1/4 tank and refilled with good gas, just in case. I am in Atlanta and traveling to Pittsburgh tomorow for a short term job for great money. I would have to spend a couple hundred to rent a car. Please Help! Tom |
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