LUMPY ON TICKOVER
2004 Volkswagen Polo 1.4 16V MANUAL
Car: Volkswagen Polo
Year: 2004
Variant: 1.4 16V MANUAL
Year: 2004
Variant: 1.4 16V MANUAL
Categories:
Running Rough, Starting & Power Loss
when warmed up it runs lumpy as though it missfiring not coming up with any more faults put new spark plugs and 1 coil pack and a new front lambda sensor and cleaned up around throttle butterfly but still running lumpy it revs up ok no missfire and checked for any air leaks around inlet manifold but could not find none can you please tell me what else it could be ? thanks jason
Problem added: May 17, 2012 (11 years ago)
you really need to code read it, faults can still be stored even if the management light is off, also if you have not cleared any faults it can also affect the running
Answered May 18, 2012 (11 years ago)
try a compression check of all cylinders and compare the readings it might be low on one cylinder
Answered May 20, 2012 (11 years ago)
HI IT IS LOW ON COMPRESION NUMBER 1 READING WAS 5 BAR NUMBER 2 10 BAR NUMBER 3 9.5 BAR NUMBER 4 7 BAR I PUT SOME OIL DOWN IN NUMBER 1 AND COMPRESION READING WAS 10 BAR SO DOES THIS MEAN IT NEEDS A NEW SET OF PISTON RINGS EVEN THOUGH ONLY DONE 39500 MILES ? OR IS THERE SOME PRODUCT LIKE HOLTS PISTON SEAL THAT WILL WORK OR ANOTHER PRODUCT IF YOU CAN LET ME NO MANY THANKS ?
Answered Jun 2, 2012 (11 years ago)
This problem is archived
If you're having a similar problem please click below to re-post this problem, you can then customise it to suit your situation.
Helpful & Related Pages on AutoInsider
Parts referenced on this page
Recalls (24)
View 24 Volkswagen Polo RecallsMore problems with the 2004 model year Volkswagen Polo
We have 21 problems and solutions in our database for this model year of the car.
View all Volkswagen Polo Problems