Surging Problem
Thread Starter
|
Junior User
Joined: Oct 2002
Posts: 60
Likes: 0
From: centennial
Surging Problem
I have a 96 psd with 78,000 miles and I have a problem with it surging after it warms up. It doesent matter if I am driving on freeway or in town but it seems to do it when i am at a constant speed. The surge isnt huge maybe 200 to 400 rpm. the oil has been replaced and fuel filter changed with no help.
Playing in the Dirt
Joined: Oct 2005
Posts: 2,302
Likes: 1
From: Southwest Georgia
The CPS will cause this sometimes, also check the timmerman nut on the IPR, located on the left rear bottom of the HPOP, if it is loose it will cause the oil pressure to the injectors to go up & down. Check your fuel pressure on the FPR at the schrader valve (should be between 40-60 psi stock, anything under 16 will cause injector miss fire).
