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Volkswagen Jetta Engine Questions

274 messages,  Last post on Dec 07, 2009 at 10:32 AM

You are in the Volkswagen Jetta Forum. Your Hosts are pat & karens

What is this discussion about? Volkswagen Jetta, Engine, Sedan


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#265 of 274
Re: Rough idle, Muffled Exhaust, even w/ new plugs, wires, and ignition coil [dp2226] by 77camaro
Dec 02, 2009 (7:36 am)
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Replying to: dp2226 (Dec 01, 2009 5:40 pm)

you should not had paid for the coil there is a pending law suite against VW for the coils in jetta and golf also audi that uses same coil you should have done more research in the lemon laws.if you have any ?'s e-mail me.
#266 of 274
Re: Rough idle, Muffled Exhaust, even w/ new plugs, wires, and ignition coil [dp2226] by vwdawg
Dec 02, 2009 (9:42 am)
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Replying to: dp2226 (Dec 01, 2009 5:40 pm)

Hi dp2226: It sounds like bpeebles has a better grasp than anyone of the possible issues here, but I have a footnote to 77camaro's advice. I believe he/she is correct regarding the coil lawsuit, but I also believe that this was resolved with VW agreeing to a replacement of ALL coils of that vintage, and including reimbursement for repairs of defective coils previously replaced (with appropriate documentation). I had similar issues with my '02 Passat 1.8T. Get this resolved asap, as failure to do so could ruin your cat converter, a $700 repair item. Good luck. vwdawg/audiphile1
#267 of 274
Re: Rough idle, Muffled Exhaust, even w/ new plugs, wires, and ignition coil [77camaro] by bpeebles
Dec 02, 2009 (12:40 pm)
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Replying to: 77camaro (Dec 02, 2009 7:36 am)

Are you CERTIAN you are not thinking about the about COP (Coil On Plug) ignition-units on the which had a bad batch get into the mix? The status of the those COP units was ONLY if one failed, then VW would replace it.
 
The 2.0 engine that we are talking about here DOES NOT have COP ignition-units.
 
If there is something "pending" which you are refering to besides the COP units... please append some reference URLS that support that statement. I would be very interested to review those documents because both of my daughters have VWs of that vintage with 2.0L engines.
#268 of 274
Re: Rough idle, Muffled Exhaust, even w/ new plugs, wires, and ignition coil [bpeebles] by vwdawg
Dec 03, 2009 (8:44 am)
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Replying to: bpeebles (Dec 02, 2009 12:40 pm)

bpeebles: Not sure which system 77camaro was referring to, but I was referring to the 1.8T, which DOES use the COPs. I'm not familiar with the 2002 2.0, but I assume it's a NON-turbo, which would not use the COP units, right? If that engine does not use COPs, then you are very likely correct...I have not heard of any pending suits for the non-COP systems. vwdawg/audiphile1
#269 of 274
Re: Rough idle, Muffled Exhaust, even w/ new plugs, wires, and ignition coi by jeffyscott
Dec 03, 2009 (9:00 am)
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Replying to: vwdawg (Dec 03, 2009 8:44 am)

BTW, there is now a recall on the ignition coils for the 2.5 engine...not sure what years are included, we have a 2005.
#270 of 274
Re: Rough idle, Muffled Exhaust, even w/ new plugs, wires, and ignition coi [jeffyscott] by 77camaro
Dec 03, 2009 (10:54 am)
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Replying to: jeffyscott (Dec 03, 2009 9:00 am)

there is a site you can check for recalls- lemon law volkswagen ignition coil when you go here the left margin has where you can plug in year make model engine etc. they will tell you of pending suites or if recall has been resolved good luck the dealer still has not released coils to me do to pending suit car has been down for over a month tired of putting used coils just ordered set of bremi's I just registered in suite to get reimbursed.
#271 of 274
Re: Rough idle, Muffled Exhaust, even w/ new plugs, wires, and ignition coi [jeffyscott] by bpeebles
Dec 03, 2009 (6:05 pm)
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Replying to: jeffyscott (Dec 03, 2009 9:00 am)

The 2.5L engine uses COP (Coil On Plug) ignition units. Apparently, these COP units have been troublesome for VW.
 
There is a reason that COP units are considerd high-tech.... each indivudual ignition-unit is plugged DIRECTLY into the top of the sparkplug. This means the COP unit must endure extremely high heat from the cylinder head. Heat and electronics do not mix well. (The heat always wins in the end)
#272 of 274
Look here for recalls/TSBs by bpeebles
Dec 03, 2009 (6:09 pm)
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Replying to: 77camaro (Dec 03, 2009 10:54 am)

There are several websites that list recalls and TSB (Technicial Service Bullitens)
 
http://www.nhtsa.dot.gov/
http://www-odi.nhtsa.dot.gov/cars/problems/tsb/tsbsearch.cfm
 
My personal favorite is ALLDATA... but you may need to be a 'subscriber' to get all the details of each recall/TSB
http://www.alldatadiy.com/TSB/?loc=TSB
#273 of 274
Re: Look here for recalls/TSBs [bpeebles] by Mr_Shiftright HOST
Dec 03, 2009 (6:28 pm)
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Replying to: bpeebles (Dec 03, 2009 6:09 pm)

If you have the # and date of the TSB I'll post the details for him.
#274 of 274
Re: Rough idle, Muffled Exhaust, even w/ new plugs, wires, and ignition coil [bpeebles] by dp2226
Dec 07, 2009 (10:32 am)
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Replying to: bpeebles (Dec 01, 2009 6:12 pm)

Here are the specific codes
 
PO351, PO352,PO353,PO354 -I believe corresponds to each of the connections to igintion coil, slots A-D.
 
Presently slot A has plug 1, B -2, C-3, D-4
 
All wires and plugs are new
 
The last code is PO302 which is misfire cylinder 2
 
I know I do not have the green ECT so will grab one. The needle sits at 0 for as long as I can recall. Years. Was told that is just how they are. I will also unhook the MAF as well

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