Speedodometer/power loss
01-24-2012, 05:12 PM
#1
Member
Thread Starter
Join Date: Jan 2011
Posts: 171
Likes: 0
Received 0 Likes
on
0 Posts
Model: Cherokee
Speedodometer/power loss
My '96 Cherokee is acting strange
It was losing a lot of power climbing hills or accelerating. I did a fuel pump check and replaced the pump. The problem seemed to be solved until I drove it about 50 miles. The speedodmeter has been jumping for quite some time above 40, However it only does it after it's been driven for an hour or so. The Jeep will not stall and has plenty of power and no backfires until the speedodoemeter starts bouncing. When this happens you can accelerate and she'll just pop and buck until you back off the pedal. What connection would the speedodometer have to such an erratic behavior. Again, it;s only after it has been driven for an hour.
Thanks,
Don
It was losing a lot of power climbing hills or accelerating. I did a fuel pump check and replaced the pump. The problem seemed to be solved until I drove it about 50 miles. The speedodmeter has been jumping for quite some time above 40, However it only does it after it's been driven for an hour or so. The Jeep will not stall and has plenty of power and no backfires until the speedodoemeter starts bouncing. When this happens you can accelerate and she'll just pop and buck until you back off the pedal. What connection would the speedodometer have to such an erratic behavior. Again, it;s only after it has been driven for an hour.Thanks,
Don
01-24-2012, 05:23 PM
#2
CF Veteran
Join Date: Feb 2010
Location: Oroville, CA
Posts: 12,367
Likes: 0
Received 19 Likes
on
18 Posts
Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
The PCM relies on a vehicle speed sensor to handle transmission and fuel adjustments, replace the speed sensor and inspect the gear on it for any broken teeth.
Thread
Thread Starter
Forum
Replies
Last Post
travs2448
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
7
09-23-2015 11:36 AM
cliffy
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
7
09-09-2015 01:22 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)