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Ford Master
4,977 Answers
- Posted on Mar 28, 2012
Re: Car starts hard when engine is cold it back fire or...
How long has it been since a tuneup was done to the car.this maybe all that is needed.check the tps as these have a problem with hard start when cold at times.it pobably wouldn`t hurt to have the fuel pressure tested when cold.the map sensor can cause problems as well it this situation
what is tps
tps stands for throttle position sensor which monitors throttle postion so the ecm knows if your accelerating or idling,this is a ribbon type sensor much like a house dimmer switch for the interior lights.they are constantly being rubbed against ever time your foot moves on the gas pedal.
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