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Model specific boards => Golf mk4 => Topic started by: GTi-Matt on 20 February 2008, 21:43

Title: misfire
Post by: GTi-Matt on 20 February 2008, 21:43

just put a new headgasket on my old mans astra and done a full service on it to inc timing, but were still getting a misfire, anyone no what this could be?

i no this is a golf site but thought u mechanically minded lot might no,

Title: Re: misfire
Post by: richw911 on 20 February 2008, 21:48

damaged spark plug?

Title: Re: misfire
Post by: richw911 on 20 February 2008, 21:49

loose plug lead

Title: Re: misfire
Post by: GTi-Matt on 20 February 2008, 21:49

all new plugs mate, i thought leads?

Title: Re: misfire
Post by: richw911 on 20 February 2008, 21:51

Quote from: kke1 on 20 February 2008, 21:49

all new plugs mate, i thought leads?

Check the gaps on the plugs thay should be set from new but you never know  :shocked:

Title: Re: misfire
Post by: Rhyso on 20 February 2008, 21:52

its an Astra - its sh!te  :smiley:

Title: Re: misfire
Post by: Lee_dub on 20 February 2008, 21:54

Seen a little trick to discover if it is the leads a while ago when my dads ford was missfiring, he took out the leads one at a time and plugged a spark plug into it and layed it down, then he got his mate to turn the engine over and see if the plug sparked,  he then repeated this until he found one of the plugs not sparking

que a new set of ht leads

Title: Re: misfire
Post by: Ashmond on 21 February 2008, 11:27

did you align it back to top dead centre? I know you have to do this on mk4's, we changed a head the other week on my mates car

Title: Re: misfire
Post by: topher on 21 February 2008, 11:33

Common problem with vauxhalls, but there's a relatively simple solution involving a can of petrol and some matches, a phonecall to an insurance company, followed by a visit to a VW dealership.

Title: Re: misfire
Post by: Ashmond on 21 February 2008, 11:36

lol, you joker!  :grin: