jimprusa
New Member
- Joined
- August 18, 2001
- Messages
- 1
- Reaction score
- 0
- City, State
- Red Bluff, CA
- Year, Model & Trim Level
- 1996 XLT
I own a 1996 4.0 4x4 XLT with about 79,000 miles. The engine developed a constant loud clicking -- much like a loud lifter clicking. I have
been desperately trying to troubleshoot in order to isolate the problem.
Noise stays the same whether cold or hot. No change whether at idle or with engine under load (I lock brakes in drive and rev engine -- no
significant change in sound).
I have disconnected each spark plug wire one at a time with no change in the clicking noise level on any disconnected cylinder firing.
Removed opposite plug wires on front and back of V6 with no change in clicking noise level.
Finally I removed the accessory drive belt to idle the water pump, alternator, air, and power steering for a brief test. No change in
sound.
Oil changed also -- nothing.
Any suggestions. I no longer think it is a rod or main bearing after all this checking. Any suggestions for further checking now? Please
help as I'm stumped.
Jim
mailto:jgp@alumni-gsb.stanford.edu
been desperately trying to troubleshoot in order to isolate the problem.
Noise stays the same whether cold or hot. No change whether at idle or with engine under load (I lock brakes in drive and rev engine -- no
significant change in sound).
I have disconnected each spark plug wire one at a time with no change in the clicking noise level on any disconnected cylinder firing.
Removed opposite plug wires on front and back of V6 with no change in clicking noise level.
Finally I removed the accessory drive belt to idle the water pump, alternator, air, and power steering for a brief test. No change in
sound.
Oil changed also -- nothing.
Any suggestions. I no longer think it is a rod or main bearing after all this checking. Any suggestions for further checking now? Please
help as I'm stumped.
Jim
mailto:jgp@alumni-gsb.stanford.edu