Off Roading Forums banner

One Problem Fixed, Now Another

405 views 2 replies 2 participants last post by  sully0812  
G
#1 ·
Hi Guys,
You may remember one of my last posts regarding me installing a 4.0 head on a 4.2 block...and I had trouble getting it started. Well, my starting problem ended up being a busted CPS (Crankshaft Pos Sensor). After I replaced it, the engine started right up.

Now I have a drivablity problem. The engine idles ok, but with small throttle inputs, the engine stumbles and misses real bad. If I give it moderate or full throttle, it responds fine. While driving to work this morning on the FWY, I was able to confirm that it is not RPM related. I am pretty sure that the problem happens around the same throttle position...thus leading me to belive that it could be the TPS (Throttle Pos Sensor).

Has anyone else had this kind of problem.

Second...On the 89 XJ's, how common is it for the exhaust manifold to crack?


John...southern CA
84CJ7, 3"lift, 32"BFG, 4.10's, ARB Rear, Detroit Front, Solid Axle's, Durabak, York Air

They say we learn by our mistakes......I guess thats why we are all so smart.