Join Date: Jul 2016
Feedback Score: 0 reviews
CMP Wierdness after replacing 1 month ago...?
After troubleshooting a "no start" which left me stranded, I replaced the CMP sensor about 1 month ago. Have driven the truck very little since, maybe 1 or 2x a week... Last week drove/towed several tons of landscaping stone and truck ran fine... Parked it and it sat until yesterday when I tried to drive it... "NO START"...! AE/Scangauge II showed FICM Sync = 0 and CMP/CKP Sync = 0 .... Here we go again...! Checked RPM while cranking and was getting RPM in AE/Scangauge II, but NOT on the TACH...
Decided to check CMP sensor and there was a bit of oily residue around the sensor so cleaned if off with Brake cleaner, tightened the 8mm bolt (a tad loose), pulled the connector and cleaned it with Brake cleaner and applied Dielectric Grease and re-installed... Voila, fired right up... Monitored FICM Sync =1 consistently now, but CMP/CKP Sync in AE is bouncing between 0 (green) and 1 (red), which does NOT BOOST MY CONFIDENCE IN THIS POS 6.0, IF IT IS EVEN POSSIBLE TO HAVE LESS THAN NO FAITH WHATSOEVER IN IT... I seem to recall the last time I replaced the CMP, the CMP/CKP Sync reading stayed steady at 1 while monitoring it with AE and Scangauge II... I'm assuming the CMP sensor or wiring is now suspect...?
'04 F250 KR - '14 F350 Lariat -
Last edited by stevedunham-2; 08-16-2017 at 12:29 PM.