engine power loss on startup
Thread Starter
Senior Member
Joined: Aug 2010
Posts: 692
Likes: 1
From: Tempe, AZ
Year: 1990
Model: Cherokee
Engine: l6 242
Thread Starter
Senior Member
Joined: Aug 2010
Posts: 692
Likes: 1
From: Tempe, AZ
Year: 1990
Model: Cherokee
Engine: l6 242
map went out today, replaced it already.
manifold bolts are torqued.
still misfiring though.
cant find the camshaft position sensor at any part dealers
should i have a compression test done?
any other advice?
manifold bolts are torqued.
still misfiring though.
cant find the camshaft position sensor at any part dealers

should i have a compression test done?
any other advice?
CF Veteran
Joined: Jun 2011
Posts: 2,858
Likes: 1
From: Nor-Cal
Year: 1990
Model: Cherokee
Engine: The venerable 4.0
Originally Posted by LeRoy90laredo
map went out today, replaced it already.
manifold bolts are torqued.
still misfiring though.
cant find the camshaft position sensor at any part dealers
should i have a compression test done?
any other advice?
manifold bolts are torqued.
still misfiring though.
cant find the camshaft position sensor at any part dealers

should i have a compression test done?
any other advice?
Thread Starter
Senior Member
Joined: Aug 2010
Posts: 692
Likes: 1
From: Tempe, AZ
Year: 1990
Model: Cherokee
Engine: l6 242
thanks Slick. you've been a lot of help through this.
im gonna pick up a stator and see if it resolves the problem.
definitely praying that it fixes this issue.
im gonna pick up a stator and see if it resolves the problem.
definitely praying that it fixes this issue.
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,579
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
I seriously doubt it will fix it. Have you considered a remanufactured distributor since they come with the sync generator?
Thread Starter
Senior Member
Joined: Aug 2010
Posts: 692
Likes: 1
From: Tempe, AZ
Year: 1990
Model: Cherokee
Engine: l6 242
I've thought it but im not still doubting every new part. the fact that it only happens when it has warmed up fully, still confuses me on what it could be.
Thread Starter
Senior Member
Joined: Aug 2010
Posts: 692
Likes: 1
From: Tempe, AZ
Year: 1990
Model: Cherokee
Engine: l6 242
Senior Member
Joined: Jun 2009
Posts: 553
Likes: 1
From: West Texas
Year: 1991
Model: Cherokee
Engine: 4.0 L
I will be watching this as well. I am having the same problem, yesterday it bairly ran at startup and the check engine light was blinking. (it is always on now and has been thru the process of me trying to fix it) evap and random misfire, type cylinder 3 and cylinder 6.




