I will check all of those things. So I looked up the part number for the cam reluctor wheel and it is a different part number for Lb7 and lbz but it appears that one has an extra tooth on it and the other is smooth. Not sure if that affects anything
Won't start after alternate fire cam
- Thread starter boosted4life
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I will check all of those things. So I looked up the part number for the cam reluctor wheel and it is a different part number for Lb7 and lbz but it appears that one has an extra tooth on it and the other is smooth. Not sure if that affects anything
are you 100% it isnt the crank reluctor you looked up?
EDIT: see pics. gold is LB7-LLY, silver on engine is LBZ-LMM. no difference
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Just a idea but did you trying switching the cam and crank sensor? They are will fit in either spot and it won't run or will hard start had this happen long time ago can't remember the exact symptoms. This would throw codes for cam position sensor.
An LBZ will not run with and LB7 crank reluctor wheel. An LBZ wheel will need to be installed or add a tooth to the LB7 one.........
Sounds like you need to figure out what you actually have in the truck first. If sensors are swapped, wrong reluctor wheel or loose connections will cause this.
The truck has an LML crank and reluctor wheel which is the same as the Lbz. It has the lb7 one piece timing gear. My understanding is that all of those parts should work in an lbz
If the code didn't move from cam to crank, I'd start looking at wiring. Make sure it didn't get pinched by any of the accessory brackets
Longest Sensor plug (last on the harness) is going to the cam correct? And you have cleaned the block to bare metal where the ground goes (ground wire next to cam/crank sensors)? Ohm the wires at the plug back to the bale connector, and then to the fuse box (while bale connector connected), I've had a bad connection at the bale connector do the same.
Put new cam and crank sensors in, checked all wiring all the way to the ecm, and checked all grounds for good connection. Still getting cam sensor performance code. Engine starts but dies immediately. With scan tool on, it misses 30 or so cam signal references while cranking.
time to pull the front cover and see if they left it loose or something else. you ohmed all the wires to the cam sensor correct?
Crank the motor over with the sensor & sensor housing pulled out, see if the reluctor is bent. Could have been dropped and tweaked slightly.