Question about 1997 Mercury Mountaineer

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2 plugs gas fouled when i changed them. - 1997 Mercury Mountaineer

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If ther fouled with oil prolly broke oil ring but if its water or antifreeze blow headgasket or intake

Posted on Oct 10, 2010

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Posted on Jan 02, 2017

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I have a 2001 Dodge 1500 3.9 Magnum. Truck keeps fouling plugs while setting overnight. I come out next morning & the plugs are gas soaked. I change plugs and it starts right up and runs great but when I...


the plugs are fouling from fuel leaking past injectors and injector seals into the inlet manifold
it is nor a plug problem but injector and excess fuel problem as the fuel rail retains pressure when the ignition is off so any faults in the system will leak that pressure into the manifold

Jul 01, 2017 | Dodge Cars & Trucks

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Why is my fuel mixing with oil


I'm afraid your Subaru has burnt a valve. Typically it is the right rear cylinder (looking at it from the front of the car) that burns them. this is a common problem. It's an expensive fix. There is a chance however, it may just be a fouled spark plug. Again, it's usually the right rear spark plug that fouls. You can pull each plug wire one at a time (start with the right rear one) until you find one that doesn't make the engine run worse. Then change that plug and try it. Or replace all the plugs. If one is fouled then the others may also need changing.
HTH

Sep 18, 2014 | 1990 Subaru Legacy

1 Answer

What would cause my 2002 ford explorer xls to idle rough


What engine do you have? is check engine light on? You said you changed coil pack, but what about spark plugs? could be fouled by normal wear, improper application/plug gap, oil fouling (oil residue on electrode) caused by bad valve guide seals or bad piston rings or gas fouling(electrode wet with gas) caused by bad plug, wire, injector, O-2 sensor. Could be caused by a vacuum leak (hose or intake manifold/gasket) Check all vacuum hoses for cracking/chaffing, repair as needed. with engine idling spray carburetor cleaner at base of intake manifold watch for rpm increase if so there is a vacuum leak. Could be stuck open egr valve, Could be compression problem or timing chain problem. This is the best I can do with info you provided. Hope it helps.

May 06, 2014 | 2002 Ford Explorer

1 Answer

Cylinders 3 and 4 filling with gas


spark plugs ruined/fouled, spark plug wires ruined/fouled, if the cylinders have individual coil packs then ruined/ fouled. if there is gas that means that spark isnt happening. something to do with that situation.

Sep 18, 2013 | Nissan Altima Cars & Trucks

2 Answers

Why do my spark plugs keep fouling? Car hestitates, putters especially in idle. what else should i check


Hello jonbon742, if you haven't already, change your air filter. 75% of the time when people have the symtoms you do it is caused by the air filter.
Best of luck my friend!

Jan 11, 2011 | 1996 Chrysler Sebring

2 Answers

Failed spark coils on my 1999 Lexus ES 300. Replaced one last March and two more last month. I read that fouled plugs could cause coil failure. Since the recommended schedule for ''hard driving...


exposure to heat, weather,salt in winter and water make them more susceptible to failure I would change them knowing that my others failed

Aug 25, 2009 | 1999 Lexus ES 300

3 Answers

Spark Plug Life


Hi.

30,000 miles is about right for changing standard spark plugs. You can install upgraded (and more expensive) Iridium tipped plugs which are claimed to last up to 100,000 miles but on a standard vehicle 30,000 is the correct replacement mileage interval.

Stick to the vehicles recommended service schedule and never mind what your friend says! Afterall these service intervals are already designed for a vehicle running on unleaded!

Carbon build up on plugs has a lot more to do with correct oil and oil filter changes than unleaded fuel.

Hope this helps. Please do rate my answer

Jul 30, 2009 | 2007 Toyota Tacoma

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