Pulsing Hesitation 35-45mph
03-21-2012, 05:55 PM
#1
Seasoned Member
Thread Starter
Join Date: Aug 2008
Location: Maine
Posts: 494
Likes: 0
Received 3 Likes
on
3 Posts
Year: 1991 Laredo
Model: Cherokee
Engine: 4.0L H.O.
Pulsing Hesitation 35-45mph
Hey guys,
I'm getting a nasty pulsation kind of hesitation when I'm going around 35-45. I almost thought it felt like a fuel issue. I recently seafoamed it to try and clean the intake up a bit, but no real help. Any ideas? Maybe even the driveshaft / axle or something? You guys got any things I can run through to rule out?
Thanks.
I'm getting a nasty pulsation kind of hesitation when I'm going around 35-45. I almost thought it felt like a fuel issue. I recently seafoamed it to try and clean the intake up a bit, but no real help. Any ideas? Maybe even the driveshaft / axle or something? You guys got any things I can run through to rule out?
Thanks.
03-21-2012, 11:27 PM
#2
CF Veteran
Join Date: Aug 2011
Location: Nor-Cal Coast
Posts: 10,489
Likes: 0
Received 17 Likes
on
17 Posts
Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
Done a tune up lately? Plug gap grows over time. (.035) Take a look that your 02 and CPS wires are not melting in some ugly place. Got a light? you can try this, below. also the parts store might check for stored codes free...
The "Key Tricks"
Older (OBDI) models - Start with the ignition off. Within five seconds, switch the key on, off, on, off, on. ("On" is NOT "Start" and "Off" is NOT "Lock"). The "check engine" light will flash. Count the flashes. Each code is a two digit code, so a (for example) 23 would be FLASH FLASH (pause) FLASH FLASH FLASH (long pause). It will never flash more than 9 times, so watch for those pauses!
The "Key Tricks"
Older (OBDI) models - Start with the ignition off. Within five seconds, switch the key on, off, on, off, on. ("On" is NOT "Start" and "Off" is NOT "Lock"). The "check engine" light will flash. Count the flashes. Each code is a two digit code, so a (for example) 23 would be FLASH FLASH (pause) FLASH FLASH FLASH (long pause). It will never flash more than 9 times, so watch for those pauses!
Thread
Thread Starter
Forum
Replies
Last Post
jeefersjeepers
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
3
09-20-2023 12:51 PM
libengan
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
14
11-06-2015 09:16 AM
Zerocyde
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
0
09-23-2015 09:21 PM
Zerocyde
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
1
09-18-2015 09:03 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)