MK4 Golf GT TDi sudden misfire
Discussion
After driving conservatively over recent weeks, I decided to do ye old italian tune up, up to third gear, up to 4.5k revs and held for a few seconds then carefully into 5th.
Immediately felt misfiring and juddering when I eased off; no lights at all on the dash, still driveable, but definite loss of power; sometimes doesn't miss and is smooth for a few seconds, then returns.
There *seems* to be more vibration at standstill but don't know if this is my imagination. There is also a stuttering, high pressure noise - I'm thinking some kind of split pipe, exhaust manifold or head gasket.
Would love to hear what you think - where should I start looking? Is a cheap diagnostic off ebay worth it? Would really appreciate help!
Edited to add, seems to be a bit more of a diesel/exhaust smell in the cabin.
Immediately felt misfiring and juddering when I eased off; no lights at all on the dash, still driveable, but definite loss of power; sometimes doesn't miss and is smooth for a few seconds, then returns.
There *seems* to be more vibration at standstill but don't know if this is my imagination. There is also a stuttering, high pressure noise - I'm thinking some kind of split pipe, exhaust manifold or head gasket.
Would love to hear what you think - where should I start looking? Is a cheap diagnostic off ebay worth it? Would really appreciate help!
Edited to add, seems to be a bit more of a diesel/exhaust smell in the cabin.
Edited by ReaderScars on Friday 9th May 14:44
SmithyAG said:
When was the fuel filter last changed?
Does it only have problems once off the throttle? Turbo wastegate?
Problems whilst on full throttle? Boost leak?
I bought a vgate scanner off eBay for about 25quid and it's fantastic.
Maybe see if somebody local can scan it for you?
PassDoes it only have problems once off the throttle? Turbo wastegate?
Problems whilst on full throttle? Boost leak?
I bought a vgate scanner off eBay for about 25quid and it's fantastic.
Maybe see if somebody local can scan it for you?
No, on throttle
Haven't given it full welly
Want to get a scanner rather than get someone to scan for me - thanks for the recommendation, looking at one now.
PS, it's a lowly 110 rather than 130/150 - does it still suffer same failure?
Edited by ReaderScars on Monday 12th May 10:56
Not sure on if the 110 variant had the issue, I only know the 150 did.
The scanner I have that lives in the boot is http://www.amazon.co.uk/Vgate-VS450-VAG-Group-Scan...
It will read error codes from all different modules, so ECU, airbags, ABS, Central Convenience etc
It will also reset service indicators and even reset longlife service intervals.
Edit: here is the latest version of that scanner http://www.amazon.co.uk/gp/product/B0063FSIQ4/ref=...
The scanner I have that lives in the boot is http://www.amazon.co.uk/Vgate-VS450-VAG-Group-Scan...
It will read error codes from all different modules, so ECU, airbags, ABS, Central Convenience etc
It will also reset service indicators and even reset longlife service intervals.
Edit: here is the latest version of that scanner http://www.amazon.co.uk/gp/product/B0063FSIQ4/ref=...
Edited by SmithyAG on Monday 12th May 12:21
http://wiki.ross-tech.com/wiki/index.php/Category:...
Should cover just about every code you can imagine! Along with symptoms, possible causes and where to start with possible solutions.
Should cover just about every code you can imagine! Along with symptoms, possible causes and where to start with possible solutions.
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