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Replace camshaft sensor and still no start Volvo S60 R
I was driving my Volvo then all of a sudden I’ve lost power so I’ve pulled over and shut it off and when I tried to start it again it would just crank and crank but no start it had a code P0340 (camshaft position sensor) I’ve replaced the sensor and it will still won’t start I have fuel pressure but no spark I’ve checked the fuses and they aren’t blown does anyone have a suggestion on where to look next? Or had the same problem as me? Thank you!
It's never the cam sensor. The cam sensor code appeared because the cams are not timed correctly in relation to the crankshaft.
Sometimes the timing marks are still lined up - then the poster finds the crank pulley nut missing, and a stripped crank gear. (and bent valves) Other times a tensioner or idler bearing failure is the cause. (and bent valves)
Does the engine sound like it's spinning over faster than normal with the starter? If so - the valves are bent. Due to a cam timing problem. What's the compression?
It's never the cam sensor. The cam sensor code appeared because the cams are not timed correctly in relation to the crankshaft.
Sometimes the timing marks are still lined up - then the poster finds the crank pulley nut missing, and a stripped crank gear. (and bent valves) Other times a tensioner or idler bearing failure is the cause. (and bent valves)
Does the engine sound like it's spinning over faster than normal with the starter? If so - the valves are bent. Due to a cam timing problem. What's the compression?
Hopefully it's not - Sorry
When I went down to look at the crank pulley the nut was missing
A cylinder needs a minimum of 100 psi to run. So something has reduced your compression. Could be the cam timing is off a few teeth and valves are not bent - I would not move the engine until you can verify that!!
A cylinder needs a minimum of 100 psi to run. So something has reduced your compression. Could be the cam timing is off a few teeth and valves are not bent - I would not move the engine until you can verify that!!
when I was looking at the timing marks they all lined up in there marks but I did see that the belt was rubbing against my timing cover
When I went down to look at the crank pulley the nut was missing
when I was looking at the timing marks they all lined up
With a missing crank pulley nut - the 3 timing marks can be still be lined up, (those marks are on removable gears) .
The problem can be the crankshaft is not aligned with the crank gear. The missing pulley nut allows the crank gear to move and shreds the spines on the gear.
The problem can be the crankshaft is not aligned with the crank gear. The missing pulley nut allows the crank gear to move and shreds the spines on the gear.[/QUOTE]
how will I be able to aligned the crank gear with the crankshaft?
"how will I be able to aligned the crank gear with the crankshaft?"
A new crank gear only fits one way on the crankshaft - there is a spot weld between two splines on the crank - The crank is harder steel than the gear - so usually just replace the gear (and the valves if bent)
Replace camshaft sensor and still no start Volvo S60 R
