Question about 1996 Jeep Grand Cherokee
At 8o km it revs to 2000 r.m.p
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Posted on Jan 02, 2017
Generally this condition is the result of coolant loss, or failed thermostat. If coolant goes below cylinder head level, or thermostat remains closed,heat will stop working. Do not drive with this condition as excessive heat buildup in cylinder head can and will do serious damage to heads and or head gasket.
Find out where leak is and correct it. Change thermostat as it may also be damaged. Check for excessive steam from tailpipe or miss in engine, as these symptoms indicate a cylinder head problem.
Posted on Jan 03, 2009
I had the same problem today - January 30th 2009. what i did was spray
some WD40 in the cylinder and sprayed the key with WD40, then inserted
the key in the ignition, then "lightly" and i mean "lightly" tapped the
end of the key with the end of a wrench (my brass hammer was not in
reach) 3 or 4 times. removed the key and then inserted again - then
"all was well. the ignition turned, car started, and i will now wait
till the next time something goes wrong with the car...
Posted on Jan 30, 2009
oil pressure problem should be checked independently of other problems...Use a good accurate mechanical gauge to check. If pressure is good (no less than 15psi at idle hot (I prefer to see at least 20) check dash grounding, block ground and if OK, change sending unit. Dash and body ground can influence operation of shift and body control modules so indirectly your problem may or may not be related, depending upon what you find while testing. And it could turn out to be a defective module! They are expensive and just plugging new ones in may work, but then again, it might not. I might be totally incorrect on this...that's the value of actually being there instead of doing this by "remote control".
If you read the numerous posts pertaining to all vehicles, you will see that you are not alone with electrical problems...As long as the engineers who design this stuff, keep using "modules" to replace ordinary simple and reliable systems, we will continue to have these problems. Do some testing and I'm sure you will find a solution! (I'm still waiting for someone to make a program for a PC that will give a complete readout of every system in a vehicle, including exact faults instead of general system "suggestions")
Posted on Apr 07, 2009
Check the Trans fluid level with it running and at operating temperature. Jeep NAG1 transmissions are known to have the input electric seal leak trans fluid. Not an exspensive fix add Mopar ATF4 and then relace the guild seal.
Posted on Jul 20, 2009
Sounds like the governer in the tail housing of the trany. is stuck. Or if it has a cable for the shiftting mechanicanism that runs to the throtel body the cable may be broken or out of adjustment.
Posted on Dec 19, 2009
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