ASD fuse keeps blowing

[Elio_S]

Originally Posted by ozjeepster

That's great news mate , I also got this one sorted , in my endeavour finding the fault in the ASD circuit I had cooked off 2 of the new coil packs , new ones will be hear by lunchtime tomorro & then she can go home lol

Good stuff. Maybe our hair will grow back now lol:thumbup:


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[ozjeepster]

Hahaha I'm good there I just look like a silverback lmao

[DarrenR]

An interesting post, I've seen this quite a few times and each time the cam chains have been a tooth out advanced (after someone had done the timing chains), its a common stuff up on the 4.7lt, to be fair doing the three chains is tricky.

The tell tale signs are as the original poster mentioned, blowing ASD fuse, only running on high rpm, numerous coil fault errors, only running with TPS disconnected.

As I always say... get back to the basics of physically checking valve timing, No1 piston at TDC no load on the rockers.

regards
Daz

[Elio_S]

Originally Posted by DarrenR

An interesting post, I've seen this quite a few times and each time the cam chains have been a tooth out advanced (after someone had done the timing chains), its a common stuff up on the 4.7lt, to be fair doing the three chains is tricky.

The tell tale signs are as the original poster mentioned, blowing ASD fuse, only running on high rpm, numerous coil fault errors, only running with TPS disconnected.

As I always say... get back to the basics of physically checking valve timing, No1 piston at TDC no load on the rockers.

regards
Daz

The weird thing with this job was that on the camshaft that tone wheel for the camshaft sensor is mounted to, was set up @ tdc meaning the marks were on 12 oclock R on 9 oclock and L on 3 oclock, it was actually one tooth out. and by backing it of 1 tooth, the timing marks no longer lined up. The camshaft on the other side lined up fine.