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Old 02-27-2013, 12:31 PM
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95 jeep grand cherokee

Jeep loses power after it warms up the engine lurches sounds like its missing but only after it warms up any ideas?
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Old 02-27-2013, 12:32 PM
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Re: 95 jeep grand cherokee

v8 btw
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Old 02-27-2013, 09:15 PM
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Re: 95 jeep grand cherokee

Do you have any trouble codes?
Try this trick to read them:
Quote:
Extracting Fault Codes:
Without ever starting the engine Turn the ignition switch ON, OFF, ON, OFF, ON and observe the CHECK ENGINE LIGHT. The CHECK ENGINE LIGHT should begin to flash a series of codes. The flashes will be separated by short and long pauses. The long pauses separate the "ones" and "tens" positions, and each code from the next. A code 55 will be displayed at the end of the test.
Also, look through the throttle plates and see if you have any oil pooled up. If you do, then the plenum pan gasket is leaking. Fixing this would fix an oil consumption issue and fix power loss. (you can get an aftermarket aluminum pan with new bolts and gasket and the fix will last a lot longer, but costs more.)

Lastly, I would check the IAC valve in the throttle body. It can get pretty dirty and nasty, pull it out and clean it with throttle body cleaner. DO NOT put any force on the plunger, you may break it. Reset the computer after doing this so it can relearn where to keep the plunger for proper idle.

The only other thing I can think of after all of that would be a bad O2 sensor, or a clogged catalytic converter.
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Old 02-28-2013, 08:23 AM
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Re: 95 jeep grand cherokee

Thank you so much ! I will try that and i did notice the throttle body area was nasty
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Old 03-18-2013, 06:16 PM
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Re: 95 jeep grand cherokee

Ignition coil. Heats up and internally opens..
Try replacing the coil.
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Old 03-18-2013, 10:31 PM
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Re: 95 jeep grand cherokee

Quote:
Originally Posted by Jeeper79 View Post
Ignition coil. Heats up and internally opens..
Try replacing the coil.
Thankl you so Much def on My list to do next cleaned the throttle body helped a lot next the coil
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