Tiggsy Posted October 9, 2009 Report Posted October 9, 2009 My 2.8 V6 auto is running ROUGH! Acceleration with low revs rattles my teeth! I'm assuming that it's firing on 5 cylinders so would that be a plug or coil issue....i'm happy to replace myslef but not sure how to tell which is gone and dont want to buy stuff i dont need. I'm guessing coil as that caused the same symptons last time and the dealer replaced a coil (i think i'm right in saying there's a coil for each cylinder) help! Tiggs Quote
dipsomaniac Posted October 9, 2009 Report Posted October 9, 2009 My 2.8 V6 auto is running ROUGH! Acceleration with low revs rattles my teeth! I'm assuming that it's firing on 5 cylinders so would that be a plug or coil issue....i'm happy to replace myslef but not sure how to tell which is gone and dont want to buy stuff i dont need. I'm guessing coil as that caused the same symptons last time and the dealer replaced a coil (i think i'm right in saying there's a coil for each cylinder) help! Tiggs if you have a mk1 you only have one coil pack. car can usually run ok on 5, its when it runs on 3 that it gets rough. you need to check the plugs and leads first if you think it is running on 5. you need a really big healthy spark. if you haven't got one chances are that it will be the coil pack. i paid approx Quote
Tiggsy Posted October 9, 2009 Author Report Posted October 9, 2009 (edited) My 2.8 V6 auto is running ROUGH! Acceleration with low revs rattles my teeth! I'm assuming that it's firing on 5 cylinders so would that be a plug or coil issue....i'm happy to replace myslef but not sure how to tell which is gone and dont want to buy stuff i dont need. I'm guessing coil as that caused the same symptons last time and the dealer replaced a coil (i think i'm right in saying there's a coil for each cylinder) help! Tiggs if you have a mk1 you only have one coil pack. car can usually run ok on 5, its when it runs on 3 that it gets rough. you need to check the plugs and leads first if you think it is running on 5. you need a really big healthy spark. if you haven't got one chances are that it will be the coil pack. i paid approx Edited October 9, 2009 by Tiggsy Quote
frogeye Posted October 9, 2009 Report Posted October 9, 2009 I've recently been through this with my 2001 v6. If you've got Vag.com the measuring blocks on the 'engine' diagnostic should indicate which cylinder is misfiring - you can then verify this by disconnecting the low voltage wiring to the coil in question with the engine running and there should be no change if you've got the correct one. Appearantly the 2001/2 models were shipped with a dodgy batch of coils which Ford chose not to recall.I started with a new set of plugs (have not had the car long and had no idea when they had last been done), the ones I took out looked like the originals (NGKs with Audi symbol on), my new set (double platinums NGK - about Quote
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