My Envoy 4.2L will start when cold. after a few minutes, it looses power. I floor it with no response but at least i got it off the road into a parking lot.
As soon as i let go of the pedal, it will not start again. I floor it and it will "run" while cranking but as soon as i let go of the key(when trying to start it), it dies- the whole time with my pedal to the floor.
I just got this truck which had a blown head gasket and i though that was the whole cause of this behavior(from overheating). When i replaced the gasket, I started it sitting running in my driveway for 30 minutes only to turn it off to do xyz and start it again fine a few times.
Now, i close the hood and in no more than about 10 minutes driving, this happened. I think the problem started earlier in that only a few blocks away from home, i floor it, but there is no pep- just a very slow acceleration.
Where to look at?
Any clue??
TIA.
As soon as i let go of the pedal, it will not start again. I floor it and it will "run" while cranking but as soon as i let go of the key(when trying to start it), it dies- the whole time with my pedal to the floor.
I just got this truck which had a blown head gasket and i though that was the whole cause of this behavior(from overheating). When i replaced the gasket, I started it sitting running in my driveway for 30 minutes only to turn it off to do xyz and start it again fine a few times.
Now, i close the hood and in no more than about 10 minutes driving, this happened. I think the problem started earlier in that only a few blocks away from home, i floor it, but there is no pep- just a very slow acceleration.
Where to look at?
Any clue??
TIA.