I just got a leak on the tranny temp sensor fixed and now this....seems like it never ends! lol Anyway, after I installed the gauge I had a good steady reading of 62PSI at idle and maybe down to 60 when accelerating gradually. Down to 51 at WOT
. But cruising around at pretty much any speed was 61-62. Never wavered more than that. Starting this morning though it fluctuates at part throttle cruising only....and only intermittently. At idle, 62. Accelerating, around 60. WOT
, around 51. When cruising along at 10MPH, 20MPH, 30MPH, whatever speed, it will sometimes read around 61 and other times will bounce rapidly between ~53 and 70PSI. For no reason whatsoever! If I drop off the throttle, it settles right back to a steady 62. If I get on the throttle, even just a smidge, it also settles out to around 60-61. Steady. After a minute or two of being steady while back at cruising it will begin bouncing like crazy again.
I did some searching and one possible thing I found was some fuel return lines were mis-machined and while still sealing well, could wiggle in about 1mm and partially block off the return port.
Besides checking for this, I will also hook up the scanner and monitor all of the related specs and write them down, both when it is running normal and when it is doing this pogo-bounce crap. Does anyone else have any other suggestions?