jday47

just in the last couple days i have noticed when i start my truck it shutters really hard a couple times and then once its running for a few mins it stops, should i worry?ehat is this?

fordtec

Sounds like a blown head gasket/cracked head. Does it smoke?

jday47

no no smoking or anything

V8Addict

Could be something wrong with the cats.

Crit

1. Push the gas pedal all the way to the floor.

2. Start the truck while holding the gas pedal all the way to the floor.

3. Bounce the rev limiter for about 15 to 20 min.

4. Problem solved!!!






(Please don't try this I WAS ONLY JOKING)

jday47

that would assure me tht id have a blown engine lol 20m mins of tht dead

udderbrudder

If you can access datastream from PCM, verify that ECT is reading temp accurately. Check it when engine is cold. ECT temp should be very close to IAT temp. If no - test the sensor resistance and check for air lock near sensor.

Warspite

IAC just might need cleaning, if idle is OK at warmup, and no codes.