2002 Mazda b2200 Oil residue on the spark plugs

2002 MAZDA B2200
90,000 MILES • 4 CYL • 2WD • AUTOMATIC
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RANDALLEAKES
  • MEMBER
  • 1 POST
My truck started vibrating, losing power going up hills and the check engine llight came on yesterday. So I went and had a Dianostic test ran to see what the error might be. The test came back with an error for TCS (throtle control sensor) so I changed it out and the old one was definately no good. The truck in park still had heavy vibations so I thought it maybe a ignition problem so I changed out the spark plugs and wires. When removing the old plugs I noticed that the plug had oil residue (not carbon) even a small drop of oil was on one of the plugs. After changing them out the truck still idels rough and has a huge decrese in power. could this be head gaskets and rings???? Mazda B2300 Thanx
Jun 19, 2008 at 6:51 AM
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MHPAUTOS
  • ✓Experienced Mechanic
  • 31,937 POSTS
Hi there,

I would first do a comp test and a leak down test, this will give you an indication as to the condition of the bottom end. do this and report back your findings.

Mark (mhpautos)
Jun 19, 2008 at 10:16 AM
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