1997 chevy Silverado 5.7 ltr. Had a rebuilt transmission, new cylinder unit, Fuel pump. Question: Truck is shutting down on me while driving. We were at Walmart and it died while pulling out, then it died driving out of, then we got going up to speed and it was dieing and starting back up by itself while i was on the highway.
So we pulled over and looked under the hood and didn't know what to look for so we just went on home. It was like it was posessed or something.
I would appreciate it if you could give us some kind of idea what could be wrong with it. Thank you, christy.
Answer: This is a strange problem to have your Chevy Silverado die out at idle and while driving at speed. Usually it is one or the other.
Stalling at low speeds in the parking lot is usually just carbon in the throttle. That can be fixed with a good cleaning using carb cleaner or SeaFoam. Then take for a drive on the highway to sort of blow it out. But that would not explain stalling out and starting back up while driving. That could be a couple different things.
If you are loosing all electrical power, it could be something as simple as a loose battery cable. Other possibilities are a loose ground wire. A common one is on the back top of the passenger side of the engine. It is a small black wire that bolts just behind the cylinder head against the firewall. If you can find it, give it a little tug to see if it breaks.
Another common problem on this truck is a bad ignition switch. This is what the key goes into. It is attached to the ignition key cylinder. The ignition switch feeds power to most of the truck electrical system and can cause these problems. You can try to tap on the head of the key with a small hammer, and just under the key on the bottom of the steering column with the vehicle running, Sometimes this will cause a faulty switch to act up and make the truck stall out.
More Auto Repair Answers, Questions And Help
World Of Wheels Electrical Testing Belt Diagrams Mustang Engine Overhaul All about Tires