1995 2.2 Pontiac Sunfire Completely Dies...?

Question

So the car doesn't seem to act up until its up to temp. When you are going down the road, if you get on it at all it jumps a couple times and looses power (in the non electrical sense) and the tach plumits to 0, the car dies. All electrical systems on the car don't hiccup at all, the car just dies out. It usually takes at the very least 10 minutes to restart and it runs fine again until ran hard. Thats the ONLY consistancy I've found, that and it does it right around were it needs to shift, high rpm. So far I've changed both coil packs, the ignition control modul, plugs and wires. I've had a couple guys say crank sensor or ignition switch. I'm out of ideas.....

I changed the fuel filter not too long ago. As far as the pump goes...can that make it completely die all together without any chugging or sputtering? I would think it wouldn't be consistant like it is, thoughts?

Changed the Ignition switch...no different

Answer 1

id look in the fuel system on it first on it to see if it is getting enough fuel ,a clogged fuel filter will cause this,and a weak fuel pump will also do it,if it looses voltage when it does this i would suspect the ignition switch could cause it also.i have had a grand -am in the shop that did this,and it turned out to be the ignition switch on it,but the owner had already replaced everything you have, and then some,but all it was doing was loosing all of its electrical supply,you can check the switch with a good tester this might help narrow it down but for no more than they cost id just replace it,good luck on it,i hope this helps.

Answer 2

I would look at fuel pump pressure & volume.. Also, injector spray pattern. The 10min cool-down makes it sound like a heat issue, have you checked to see that the radiator hoses do not collapse when engine is revved? Maybe clogged coolant passages in the cylinder head?

Answer 3

Plugged fuel filter?
Worn out fuel pump?