'99 A4 1.8T Cam Chain Tensioner Failing?
10-22-2010, 03:17 AM
#11
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Yea thats all yuou need to do. Make sure you start loosening the cam at the middle bridges, and go in a circle. Also back each bolt out 1 turn, dont take them all the way out one at a time. You can crack the cam if its not supported evenly. Roll the cam out, slide the new tensioner in, and roll the cam back in. Count the links between marks on the rear cam bridge, 16 is timed. Take pics before you tear it apart so you have a guide.
10-23-2010, 07:07 PM
#12
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Yea thats all yuou need to do. Make sure you start loosening the cam at the middle bridges, and go in a circle. Also back each bolt out 1 turn, dont take them all the way out one at a time. You can crack the cam if its not supported evenly. Roll the cam out, slide the new tensioner in, and roll the cam back in. Count the links between marks on the rear cam bridge, 16 is timed. Take pics before you tear it apart so you have a guide.
10-25-2010, 06:58 AM
#13
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Take pictures and let us know how it goes!
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Phone: 1.800.924.5172 - Sales: 8:30am to MIDNIGHT EST | Customer Service 8:30am - 8pm EST
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10-30-2012, 06:39 AM
#15
AudiWorld Senior Member
Cam tensioner - cam position sensor short or open code?
I have
17746 - Camshaft Position Sensor (G40)
P1338 - 35-00 - Open or Short to Plus
Reset codes (disconnect battery for long time, disconnect and shortened (car side) for minute, erased codes with VAGcom.
Replaced G40 (2x with good used, 1x with brand new).
Switched ECU.
Checked voltage on connector.
Checked resistance on connector pins to ECU (11, 67, 76).
Code come back right away.
Pulling cam sensor connector with engine running generates same code.
Cut connector off and soldered other connector.
Code comes back right away.
Same symptoms (long cranking, barely starting, no power under 2k rpm; all classic 'bad cam sensor').
Rosstech wiki also lists: check cam adjuster.
Could cam adjuster cause 'bad cam sensor code'?
Any other suggestions?
17746 - Camshaft Position Sensor (G40)
P1338 - 35-00 - Open or Short to Plus
Reset codes (disconnect battery for long time, disconnect and shortened (car side) for minute, erased codes with VAGcom.
Replaced G40 (2x with good used, 1x with brand new).
Switched ECU.
Checked voltage on connector.
Checked resistance on connector pins to ECU (11, 67, 76).
Code come back right away.
Pulling cam sensor connector with engine running generates same code.
Cut connector off and soldered other connector.
Code comes back right away.
Same symptoms (long cranking, barely starting, no power under 2k rpm; all classic 'bad cam sensor').
Rosstech wiki also lists: check cam adjuster.
Could cam adjuster cause 'bad cam sensor code'?
Any other suggestions?
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