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No compression in cylinder #3 on a 2004 Mercury Mountaineer

I have a 2004 Mercury Mountaineer as I was driving at 45 mph the whole car started shaking. I pulled into a gas station turned it off and waited a few minutes before starting it. When I crunk it up the idling was horrible and it was jerking so I put into drive and drove it home. I had my dad take it to a local shop and the codes stated that there was misfires in cylinder 1,3 and 5 so they done a compression test and there is no compression in cylinder number 3. I just need to know what could be the cause of this issue? I'm really hoping it's not the timing chain!

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

SOURCE: code says misfire in cylinder 1

keemo68 is a fraud

Posted on Nov 05, 2008

  • 193 Answers

SOURCE: 1997 mercury villager mini van

I proceed with cauation when advising the owner to repair when they have never repaired before. Yes, your problem may very well be a thermostat, but it could also be a blown head gasket.

With the engine running, check the tail pipe to see if there are any water dropplets coming out. if there is, it is A good sign of a blown head gasket.

Replacing a thermostat is not a simple as one would think. Even before changing a thermostat or anything for that matter, you need to have a pressure test done on the cooling system. This is a small pump that one attaches to the radiator and applies pressure to the cooling system to see if there are any leaks.

I would recommend this. Take you van to an independent repair shop and talk to the manager and tell him that you want a correct diagnosis first, even if you have to pay for it. Many shops will diagnosis the problem and charge you a standard fee. It is then up to you to decide what you want to do from there.

Remember, the correct approach to any problem is a correct diagnosis.

Do not tell the shop owner what you think is the problem or what you think should be changed. Just tell them how it acts and then let them earn their money, but above all, emphazise the fact that all you want is a diagnosis.
Bill

Posted on Nov 19, 2008

  • 312 Answers

SOURCE: 2001 MERCURY MOUNTAINEER V8 DRIVES PERFECT UNTIL

This is often the result of a tire that is out of balance. Check for bubbles on any of the tires and have the tires balanced. That should clear up the problem.

Posted on Dec 05, 2009

  • 32 Answers

SOURCE: I just need it fixed! ASAP in Atlanta GA

REPLACE YOUR IDLER PULLEY , ITS CHEAP AND PROBABLY YOUR SOLUTION! ONLY A SUGGESTION , BUT GET RID OF THAT CAR. THEIR AN ELECTRICAL NIGHTMARE. I CALLED MINE THE MERCURY MISTAKE WHEN ORDERING PARTS.LOL

Posted on Feb 19, 2010

Rickygittins
  • 715 Answers

SOURCE: I recently bought my girl.

Do a compression test on all the cylinders, If all the cylinders are ok them I would be checking the #3 fuel injector

Posted on Apr 12, 2011

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