My truck at highwayspeed seems to have a high.

Tiny
DREWS1224
  • 1994 MITSUBISHI MIGHTY MAX
  • 245,000 MILES

My truck at highwayspeed seems to have a high rpm I can only get it up to 65 mph. In the mornings cold ones I have white smoke out the tail pipe for just a few minutes once the truck warms up it quites smoking and I also have a code 40 does anyone know what this is?
thanks andy

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Tuesday, November 6th, 2012 AT 2:06 AM

1 Reply

Tiny
CADIEMAN
  • MEMBER

U will need to do a compression and leak down test.

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Tuesday, November 6th, 2012 AT 3:03 AM

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