Death of a Coilpack?

Models manufactured from 1999 to 2004

Moderator: Mikewire

Death of a Coilpack?

Postby squabeggs on Sep Mon 10, 2012 2:15 pm

17772 - Cylinder 4 Ignition Circuit: Open Circuit
P1364 - 35-10 - - - Intermittent

17763 - Cylinder 1 Ignition Circuit: Open Circuit
P1355 - 35-10 - - - Intermittent

17766 - Cylinder 2 Ignition Circuit: Open Circuit
P1358 - 35-10 - - - Intermittent

17769 - Cylinder 3 Ignition Circuit: Open Circuit
P1361 - 35-10 - - - Intermittent

The wagon of codes returns. 2001 2.0 AVH engine. The TSB for the ground wire has been done and rechecked for broken wires/corroded grounds. All the engine bay ground wires and points have been thoroughly checked/cleaned. Plugs and wires are little over a year old now. Wires are Karlyn/STI and plugs are Denso Double Platinums. Plugs look pretty good...probably replace them anyway with appropriate NGKs. Plug wires look tip top and maintain proper resistance via ohm meter.

Soooo...safe to say that this coil pack is toast? This would be the 3rd one since this car rolled off the factory floor (i've never changed one, just have all the dealer records). Car has approx 110k on the clock. Seems fishy that it has killed 3 coilpacks. Are they THAT bad? Actually I guess this would be the second it would have killed. Records indicate that coilpack 1 replaced, then TSB, then coilpack 2, and now this one...so they probably needlessly replaced the first one. meh.. As far as i know they were all OEM. 99% positive the current one is..TEMIC

Only other thing I can think of is the fuel pump relay (I have only heard of loosely related things pointed to this). I guess it supplies power to the ECU, so if it is faulty it supposedly can contribute to the above codes (or something along those lines). Anyone here know anything about that? It passes the click test and terminals are slightly browned and it is the older 8-pin version, but nothing really suspect about it....at first glance...guess I'd have to do some real tests on it to confirm or eliminate.

Just looking for anything else I might have missed before I go chuck $150+ at a new OEM coilpack. Sorry for the bloated post.
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squabeggs
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Re: Death of a Coilpack?

Postby Mikewire on Sep Mon 10, 2012 2:58 pm

Heat will crack it...Jb weld it. I dunno, I had my 2.0 and had no cp issues. I had it this weekend and it has 155k on it with still no issues (it was in for a 2nd clutch).

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Re: Death of a Coilpack?

Postby squabeggs on Sep Mon 10, 2012 4:00 pm

Yeah...I gave it a nice paint job. JB Weld grey. This was about a year ago when I changed the plugs and wires. I noticed some suuuper fine hairline cracks. I'm thinking that moisture may have gotten in it then at somepoint and it has just finally corroded internally and died. So annoying. Probably gonna have to suck it up and kiss $150 goodbye.

Incase anyone else is looking for one, here is the cheapest OEM one I have found...free shipping too.
http://www.autohausaz.com/search/product.aspx?sid=flowx1yi23q43gj1wbqnlrea&makeid=800026@VW&modelid=1382699@JETTA%20&year=2001&cid=25@Ignition%20Parts&gid=7060@Ignition%20Coil
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