Cam sensor caps keep failing
- Thread starter NY_GN
- Start date
Did you notice any symptoms while the engine was running or did the engine just fail to start?
3.8L V-8 eater
Well-Known Member
- Joined
- Jul 22, 2006
Is the reluctor wheel on the cam sensor rubbing on the cap
NY_GN
Planning next secret evil upgrade
- Joined
- Sep 6, 2013
Was crushing at 35mph, sounded like it dropped to 3 cylinders and ran like crap, got home and it died. Now won't start. TR6 is saying cam sensor. Pulled cap, the reluctor ring is spinning when I crank it.
Question is why am I blowing through so many caps?
NY_GN
Planning next secret evil upgrade
- Joined
- Sep 6, 2013
Did you have the TR6 when each of these caps failed?
Did you put any of your past caps on other motors to see if the other motors would start?
Can you put this latest cap on another motor?
- Joined
- May 26, 2001
I am not a moderator on the board, but was one years ago and this is a family board, and it should stay this way.
Take a long deep breath to cool off before typing please!
NY_GN
Planning next secret evil upgrade
- Joined
- Sep 6, 2013
I don't have any other motors to use, but every time I get a new cap, it fires up and drives fine. One failed prior to the TR6 and this latest one with it.
- Joined
- Feb 18, 2006
That's weird. Whats up with that. Even if the cam signal goes out it shouldn't drop cylinders. Just goes into batch fire.
What kinda cap are you replacing it with? I know OEM's are not easy to find.
What kinda cap are you replacing it with? I know OEM's are not easy to find.
- Joined
- May 28, 2001
- Joined
- May 28, 2001
^^ What Rick said. I'm thinking sum ting wong.
Imported part?
From the same auto parts store/mfgr, each time?
The cap doesn't carry a high electrical load.
I'd look elsewhere.
Pull the sensor out, check the gear, shaft for excessive play.
Timing chain/ gear ok?
Do you have to reset the sensor when you replace the cap?
Have you VERIFIED the condition of the plug and wiring? At 30 yrs old, the wiring could well be the issue. You have the problem, unplug/plug, and it runs.....until the connection fails. You repeat, and all's well........For a while.
Not likely, but have you also checked the crank sensor?
Imported part?
From the same auto parts store/mfgr, each time?
The cap doesn't carry a high electrical load.
I'd look elsewhere.
Pull the sensor out, check the gear, shaft for excessive play.
Timing chain/ gear ok?
Do you have to reset the sensor when you replace the cap?
Have you VERIFIED the condition of the plug and wiring? At 30 yrs old, the wiring could well be the issue. You have the problem, unplug/plug, and it runs.....until the connection fails. You repeat, and all's well........For a while.
Not likely, but have you also checked the crank sensor?
NY_GN
Planning next secret evil upgrade
- Joined
- Sep 6, 2013
I think I just narrowed it down to coil pack.
No disintegrations
Well-Known Member
- Joined
- Dec 27, 2015
The tiny tab under the reluctor wheel can shear off causing erratic bs like this
NY_GN
Planning next secret evil upgrade
- Joined
- Sep 6, 2013
I checked that, it's good, even fabricated my own stronger tab.
