HELP Lost compression after replacing a coil, plugs, VCG, PCV.
2007 Passat 2.0 TFSI Wolfsburg edition with 160k miles.
Hello,
Short version: Could a frayed edge of a serpentine belt cause compression loss?
Long version:
I had a misfire on cylinder one, which of course made the engine run violently. I pulled the coils and found oil soaked plugs. I replaced the bad coil, all the plugs, the valve cover gasket, and a PCV.
The car ran for a week. Then after a drive, and shutting the car off, it wouldn't start. It was cranking, but making the classic no compression sound. I've learned that this could be a skipped or damaged timing belt, a broken intake cam chain, a broken chain tensioner, a bad cam follower, lack of fuel, and/or other things. I know the valves could be shot now as well. I wonder if all the shuddering from the misfire may have broke a worn out chain.
I noticed the inside edge of the serpentine belt is frayed, but it still appears turning everything that it's wrapped around.
Should I try to replace the serpentine first, or am I going to have to start working through the list of things that could cause compression loss?
I don't have a lot of experience with working on cars, so I appreciate any advice.
Thank you,
2007 Passat 2.0 TFSI Wolfsburg edition with 160k miles.
Hello,
Short version: Could a frayed edge of a serpentine belt cause compression loss?
Long version:
I had a misfire on cylinder one, which of course made the engine run violently. I pulled the coils and found oil soaked plugs. I replaced the bad coil, all the plugs, the valve cover gasket, and a PCV.
The car ran for a week. Then after a drive, and shutting the car off, it wouldn't start. It was cranking, but making the classic no compression sound. I've learned that this could be a skipped or damaged timing belt, a broken intake cam chain, a broken chain tensioner, a bad cam follower, lack of fuel, and/or other things. I know the valves could be shot now as well. I wonder if all the shuddering from the misfire may have broke a worn out chain.
I noticed the inside edge of the serpentine belt is frayed, but it still appears turning everything that it's wrapped around.
Should I try to replace the serpentine first, or am I going to have to start working through the list of things that could cause compression loss?
I don't have a lot of experience with working on cars, so I appreciate any advice.
Thank you,