Question about 2003 Volkswagen Golf

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There is oil on spark all spark plugs, major loss or power.sounds like there is a small misfire also

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THE TURBOCHARGER OIL BEARINGS SEAL WORN CAUSING LOST POWER AND CAUSING OIL TO GET INTO AIR INLET GETTING TO SPARK PLUGS.

Posted on Dec 30, 2010

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2 Answers

Will oil in spark plug compartment cause slow take off in acceleration.


Oil in the cylinder(s) can foul plugs, resulting in misfiring and thus loss of power. Another possibility is that the oil in the cylinder(s) comes from oil leaking into the cylinders. If these leaks are of sufficient size, they will reduce compression in the cylinder, and thus reduced power upon the cylinder firing.

Aug 16, 2014 | 1991 Honda Accord

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Troubleshooting a rough idle


Have the engine computer scanned for trouble codes. Misfires are from loss of fuel, spark, or compression. Check the fuel pressure, check that all spark plugs are getting spark, and if all good so far, test engine compression. Low compression in a cylinder will cause misfires and loss of power.

It could also be a vacuum leak- a loose or cracked vacuum hose or an intake gasket leak.

Jul 27, 2014 | Dodge Stratus Cars & Trucks

1 Answer

Idles rough,loss of power,


sounds like you have misfiring issue.. have you checked spark plugs or wire set?unfortunately I recently had the 'pleasure' of finding out that vw's take only one you'retype of spark plug... good luck!

Apr 03, 2014 | 2004 Volkswagen Jetta

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97 pontiac sunfire gt 2.4 cylinder 1 missfire. just changed the plugs and the cat


Possible valve guide seals are leaking motor oil. The motor oil on the spark plugs can cause a misfire and a loss of power.

Apr 01, 2014 | 1997 Pontiac Sunfire

1 Answer

2006 chevy express 2500 4.8l......misfiring bad. Changed plugs, wires, catalytic converter, muffler, o2 censor and mass air flow censor. Major misfiring and running horrible. I am at a loss here.....HELP!


Please make sure you gapped the plugs to specifications. ( probably 35 thou' of an inch ) gap gages are very inexpensive. Also suspect the spark plug wires, check teher integrety as well the correct firing order. To check for short, in the dark watch for arching to ground ( visually ).

Hope that helps.

please vote

Sep 17, 2010 | 2006 Chevrolet Express

1 Answer

Engine light has come on and car is misfiring, loss of power, sounds rough


Main causes of misfire would be loss of spark; the air/fuel mixture is too far out of balance to ignite; or loss of compression.

Loss of spark includes anything that prevents coil voltage from jumping the electrode gap at the end of the spark plug. Causes include worn, fouled or damaged spark plugs, bad wires or even a cracked distributor cap. A weak coil or excessive rotor gas inside a distributor would affect all cylinders, not just a single cylinder.

"Lean misfire" can occur when the air/fuel mixture is too lean (not enough gasoline in the mixture) to burn. This can be caused by a dirty, clogged or inoperative fuel injector; air leaks; or low fuel pressure because of a weak pump, restricted filter or leaky pressure regulator.

Loss of compression means the cylinder loses most of its air/fuel mixture before it can be ignited. The most likely causes here are a leaky (burned) exhaust valve or a blown head gasket. If two adjacent cylinders are misfiring, it's likely the head gasket between them has failed. Also, if an engine is overheating or losing coolant, it's likely the head gasket is the culprit.

You can isolate the weak cylinder by temporarily disconnecting each of the spark plug wires, one at a time, while the engine is idling. When there's no change in the idle speed, then you have pinpointed the weak cylinder.

Aug 25, 2009 | 2001 Ford Focus

4 Answers

My check engine light is on and flashing & my car is shaking bad!


sound like you need a tune up the light flashing is a misfire take it to autozone and have the codes read

Jun 11, 2009 | 2001 Nissan Sentra

1 Answer

1991 sentra 2dr 1.6 L rough idle in park and in drive at stop


Sounds like misfire. Change spark plugs, wires, cap, rotor , fuel and air filters. Check for oil in spark plug holes. if oil found change valve cover gasket spark plug orings. they can leak oil into spark plug holes and cause misfire.

Joe ASE Master Tech

Mar 02, 2009 | 1991 Nissan Sentra 2 Door

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