Question about 2010 Volkswagen Polo 1.2
Knock sensor replacement
Posted by Anonymous on
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Posted on Jan 02, 2017
I have changed a few cylinder heads under warranty for this type of problem. The exhaust valve guides wear, this causes the exhaust valve to seat badly, giving low compression. if one cylinder compresion reading is more than about 50 psi below the others, then this warrants head removal. It is quite a job, due to the fact that the camshft id chain driven. If you are up for it then once the head is removed, poor liquid into the exhaust ports and see if it leaks out through any of the exhaust valves.
Posted on Jul 23, 2009
this a map sensor, probably just need the sensor replaced, it measurese intake vaccum and adjusts air/fuel mixture accordingly
Posted on Oct 07, 2009
Testimonial: "MANY THANKS TO HONDABOY 47. SPOT - ON. PROBLEM SOLVED!"
this is a turn in caliper, meaning that as you try to compress the piston, you also need to rotate it clockwise. you can buy tool for this at nearly any parts store, and is fairly inexpensive.
Posted on Dec 28, 2009
Testimonial: "Thank you for your assistance. I found out the turning piston part by mistake, a day after I posted the question, when I tried to use a G-Clamp."
Crankshaft sensor is located on the right side of the cylinder block behind or under the starter. It is fitted into the rear crankshaft oil seal hausing
Posted on Sep 12, 2010
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