Engine swap problems
CF Veteran
Joined: Aug 2008
Posts: 6,588
Likes: 495
From: Chico, CA
Year: 1986
Model: Cherokee
Engine: 4.3L with headers and full 3" exhaust system
I may be wrong, but I think there are. 94 is OBDI and 98 is OBDII Rock Auto lists different part numbers for the two
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Senior Member
Joined: Jul 2016
Posts: 651
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From: NC
Year: 1994
Model: Grand Cherokee
Engine: 4.0
hmmmmm 94 is obdi and 98 is obdii but I was under the impression that the flexplates were the same. Wouldnt an incorrect flexplate cause a constant issue though?
Old fart with a wrench
Joined: Nov 2010
Posts: 14,398
Likes: 740
From: Manlius, east of Syracuse, NY
Year: 2000 XJ Sport & WJ Laredo
Model: Grand Cherokee (WJ)
Engine: 4.0L
The only other difference I can think of is the shape of the valve ports on the 2 heads, but that shouldn't cause your problem I don't think.
CF Veteran
Joined: Aug 2008
Posts: 6,588
Likes: 495
From: Chico, CA
Year: 1986
Model: Cherokee
Engine: 4.3L with headers and full 3" exhaust system
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