Join Date: Jan 2008
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MAP SENSOR problem
No codes are being recorded and the check engine light is not on.
Every morning, when I start the truck up, the truck has no power. I push the accelerator all the way down and the rpms do not go up and the truck just crawls. After about a minute of holding down the accelerator, it seams that the fuel starts to flow and the truck takes off as usual. The truck has been doing this for a while.
I recently realized that if I disconnect the map sensor, the problem does not happen. And the truck starts up and drives as normal every time.
So, every morning, I disconnect the map sensor, start the truck, drive it a few miles, pull over, reconnect the map sensor, and every thing is normal.
I put in a new map sensor and I still have the problem.