Rough start
08-14-2012, 12:48 AM
#1
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Year: 1997
Model: Cherokee
Engine: 4.0L
Rough start
WHen I try to turn the engine over it just sits there and cranks for a long time and then finally fires up. It has a real nasty idle for the first minute or so. Like it sputters a lot. Any ideas?!?! (it didn't sputter till after I put on a new crankshaft pulley)
08-14-2012, 11:40 AM
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Year: 1997
Model: Cherokee
Engine: 4.0L
Originally Posted by sik_xj
I would try with replacing/testing your cps
08-14-2012, 11:58 PM
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Year: 1997
Model: Cherokee
Engine: 4.0L
Originally Posted by sik_xj
Video Link: http://www.youtube.com/watch?v=JoWgHeARguc
I dont know what year your Jeep is, but they are all basically the same.
I think on a 99 its on the drivers side of the bellhousing.
A bad or going bad cps can cause all sorts of problems
08-17-2012, 11:12 PM
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Year: 1997
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Originally Posted by sik_xj
Post back and let us know how it goes and what you did
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08-17-2012, 11:24 PM
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Year: 1999
Model: Cherokee
Engine: 4.0
It also would be free/cheap to test the fuel pressure at the rail.
You should be about 45-50 psi. If you arent then you may be looking at a fuel pressure regulator or a fuel pump.
Beyond that it may be a crack in the intake or exhaust manifold.
There are honestly so many things that it could be.
08-17-2012, 11:29 PM
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Year: 1997
Model: Cherokee
Engine: 4.0L
Originally Posted by sik_xj
Hm, then I may try to check for a vacuum leak, that would be free to test.
It also would be free/cheap to test the fuel pressure at the rail.
You should be about 45-50 psi. If you arent then you may be looking at a fuel pressure regulator or a fuel pump.
Beyond that it may be a crack in the intake or exhaust manifold.
There are honestly so many things that it could be.
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