SPONSORED LINKS

1985 Jeep Grand Cherokee fuel problems

Tiny
JMPATT
  • MEMBER
  • 1985 JEEP GRAND CHEROKEE
  • 187,500 MILES
Spits and sputters. Have to constantly feather the gas and wants to die out climbing a hill. Speed drops to 25 mph.I have changed the fu 4el filter. Oil was just done. It does not backfire. But have no power and it takes almost 6miles to reach 55mph. It is a 5speed 4×4. Could there possibly be a blockage some where
SPONSORED LINKS
Thursday, August 29th, 2013 AT 5:40 PM

6 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,740 POSTS
Start by checking the fuel pump pressure. Make sure it is within the manufacturer's specs. Also, when was the last tune up? One final question. Has the oil been changed on a regular basis? My concern is with that many miles, things can wear out of not maintained.

Let me know.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, August 29th, 2013 AT 6:48 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,740 POSTS
I just realized it was an 85 and bit a 95. What engine do you have, the 2.5L 4 cylinder or the 2.8L V6?
Was this
answer
helpful?
Yes
No
Thursday, August 29th, 2013 AT 6:50 PM
Tiny
JMPATT
  • MEMBER
  • 3 POSTS
Regular tune ups. And it is a 2.5l 4cylinder
Was this
answer
helpful?
Yes
No
Thursday, August 29th, 2013 AT 6:53 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,740 POSTS
First, if you got that many miles out of that engine, you have done well. They usually went around 100K.

A common issue that the 4cyl had was the carb would get loose and then there was a major power loss. Check to make sure it is tight. Also, is the engine misfiring? Have you checked fuel delivery? Have you checked engine compression?
Was this
answer
helpful?
Yes
No
Thursday, August 29th, 2013 AT 7:05 PM
Tiny
JMPATT
  • MEMBER
  • 3 POSTS
Its got good compression and carb is tight. Could it have a blockage at the throttle body.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, August 29th, 2013 AT 7:57 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,740 POSTS
Have you checked to make sure the catalytic converter isn't plugged? As far as the throttle body, I don't feel there is a blockage.
Was this
answer
helpful?
Yes
No
Friday, August 30th, 2013 AT 8:28 PM

Please login or register to post a reply.

Related Engine Stall While Driving Content

Is it Safe to Drive Check Engine Light?
VIDEO
Is it Safe to Drive Check Engine Light?
Instructional repair video
Engine Stalls While Driving
GUIDE
Engine Stalls While Driving
An engine that stalls while driving and then starts back up again, either immediately or after a short time is different from an engine that just wont start or if the...
VIEW MORE

Sponsored links