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Old 04-25-2010
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camshaft synchronizer question

Before someone says it, yes I have done a search but wanted to make DOUBLE SURE.

Is the camshaft synchronizer problem also associated with the 4.0 SOHC?? Or just the 3.0 Vulcan and 4.0 OHV?? I was reading about a constant squeaking coming from the engine bay when other people had this problem, and lately my truck has had this very minor (almost un-hearable) squeaking when running/idling.

I think it's the idler puller on the engine actually, but thought I'd see what the experts here had to say first. So....???


GB :)
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Old 04-25-2010
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You can tell if it is the camshaft synchronizer by touching the top of the sensor while the motor is running. That is what I did when mine squeaked.
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Old 04-25-2010
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I'm asking what engines are affected.


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Old 04-25-2010
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Well you will know then =)
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Old 04-25-2010
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Ok, you're not helping to answer the question I originally posted. So don't bother anymore please. I appreciate your enthusiasm but it's not answering what I was asking.

Maybe someone else has a better idea of what I'm asking...


GB :)
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Old 04-26-2010
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Quote:
Originally Posted by Bird76Mojo View Post
Is the camshaft synchronizer problem also associated with the 4.0 SOHC?? Or just the 3.0 Vulcan and 4.0 OHV?? I was reading about a constant squeaking coming from the engine bay when other people had this problem, and lately my truck has had this very minor (almost un-hearable) squeaking when running/idling.
The 4.0 SOHC has a Camshaft Position Sensor but it is a totally different part that bolts to the driver side cam cover and reads directly from a toothwheel on the camshaft. There is no Synchronizer in your engine. If you have a chirp noise, it might possibly be caused by something in the accessory drive - belt, pulley, tensioner.
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Old 04-26-2010
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the squeaking on moms 04 explorer was the harmarlic balancer might check yours
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Old 04-26-2010
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Thanks guys. That's the type of answers I was looking for. As I said, I think the squeak is actually an idler pulley. I'll have to investigate it further.. I just wanted to be sure, after reading about the camshaft synchro problems and getting paranoid.

Thanks again!


GB :)
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