stalling jerking

chev54dr · #1 10-20-2006, 02:35 PM

i have a 89 cherokee 4wd automatic 4.0L the transmission feels like it is about to fall out after i drive it for 15-20min the temp guage reads 190. oil pressure fine. you can put in neutral and cut off restart it put in drive runs fine for 2-3 minutes then starts all over with the jerking, loss of power, and won't get over 30 mph. im thinking it is a sensor because you can cut off and restart and runs fine, but which one? any help would be appreciated!

fredjacksonsan · #2 10-20-2006, 03:30 PM

Crankshaft position sensor. Do a search in this forum. My transmission also shifted around crazily a couple times before I replaced the sensor.

chev54dr · #3 10-20-2006, 03:43 PM

thanks ill give it a try!

chev54dr · #4 10-24-2006, 11:55 PM

put a new crankshaft position sensor on still same thing, took out thermostat thinking possibly overheating, still same thing, trans fluid changed still same thing and in neutral. any suggestions?

fredjacksonsan · #5 10-25-2006, 08:35 AM

Hmmm...odd...throttle position sensor maybe?

chev54dr · #6 10-25-2006, 09:59 AM

thanks ill give a try, any other suggestions

AlohaBra · #7 10-25-2006, 11:13 AM

Quote:

Originally Posted by fredjacksonsan

Hmmm...odd...throttle position sensor maybe?

I'll second that.

Here is a post that you might check for a download on information on the TPS:

http://www.dua1.com/AdminFiles/Jeep/...PS_testing.pdf

chev54dr · #8 10-25-2006, 08:58 PM

tried tps sensor, fuel injection svc., anybody think it might be trans module or computer? this is getting anoying

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