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Model specific boards => Golf mk3 => Topic started by: MandS on 17 February 2008, 10:22

Title: Stuttering/Juddering problem
Post by: MandS on 17 February 2008, 10:22: Mornin' all.

Got a strange problem with the GTi. When maintaining a steady speed, say 40 mph, the car stutters/judders. When accelerating or decelerating the car is smooth as it should be.

Going to clean the thottle body once the car thaws this morning to see if this makes a difference.

Any ideas would be great.

Cheers guys and gals.
Title: Re: Stuttering/Juddering problem
Post by: CraigDavid on 17 February 2008, 12:21: Would highly recommend changing both the ECU relay & Fuel Pump Relay first!! Will cost you about Ã‚£30 for the both at a VW main dealer!!

(http://images30.fotki.com/v476/photos/7/783241/5030802/VWGolfGTi16vRelays-vi.jpg)
Title: Re: Stuttering/Juddering problem
Post by: MandS on 17 February 2008, 12:25: Cheers CraigDavid.

A new development. As I was poking around under the bonnet this morning I noticed an oil leak from the top of the oil filter housing. It is leaking from a sensor on top with a single spade connector in a rubber boot. What is that sensor? It is covered in oil, including the connetors and the rubber boot.

EeeeK!
Title: Re: Stuttering/Juddering problem
Post by: saul79 on 17 February 2008, 12:38: oil pressure sensor replace with a genuine one as the aftermarket ones are crap
Title: Re: Stuttering/Juddering problem
Post by: MandS on 17 February 2008, 12:53: Cheers guys,

I'll be at VW then first thing in the morning.

:smiley:
Title: Re: Stuttering/Juddering problem
Post by: MandS on 19 February 2008, 16:00: Okay.

Now I've fitted new Oil Pressure Sensor, ECU Relay and Fuel Pump Relay. Problem still persists. I took the car on a 5 mile run to see if the new components needed to "bed in". While I was out I noticed a "chattering" noise from underneath. When I got home and got out of the car there was a "hot" smell. I looked under the car and the area of the exhaust where the CAT is was smoking and so was the big part of the exhaust before the back box. What has happened?

I feel a big bill coming on....................................
Title: Re: Stuttering/Juddering problem
Post by: Mikester on 19 February 2008, 16:13: Quote from: MandS on 19 February 2008, 16:00
Okay.

Now I've fitted new Oil Pressure Sensor, ECU Relay and Fuel Pump Relay. Problem still persists. I took the car on a 5 mile run to see if the new components needed to "bed in". While I was out I noticed a "chattering" noise from underneath. When I got home and got out of the car there was a "hot" smell. I looked under the car and the area of the exhaust where the CAT is was smoking and so was the big part of the exhaust before the back box. What has happened?

I feel a big bill coming on....................................

Maybe the cat has collapsed causing the loads of resistance and the smoke etc. New cat?
Title: Re: Stuttering/Juddering problem
Post by: Len on 19 February 2008, 16:16: maybe a timing issue, does your car rev past 5000 revs?

If it does then its the CAT I'm afraid. Best go to GSF or Eurocarparts for that!
Title: Re: Stuttering/Juddering problem
Post by: MandS on 19 February 2008, 16:46: Cheers,

I've got a VW Indy up the road. I'll take it in and get them to fit a new CAT and check it out.
Title: Re: Stuttering/Juddering problem
Post by: G60GTI16V on 20 February 2008, 13:52: ouch (for the pocket) iv never taken my cars to the garage i diy keeps me :grin:
Title: Re: Stuttering/Juddering problem
Post by: MandS on 21 February 2008, 14:59: Picked up the car today and it's had new coil, ignition leads, rotor arm and the throttle body and breather pipes cleaned. Plus the codes read, all for 150 quid and it's running sweet so I'm happy.

Thanks for all the advice.