I have a 1991 GMC Sanoma, it will idle great, but when you go over 20 mph
it will start to cut out and not want to run, What could that be, I have
cleaned the throttle body, put in new spark plugs, wires, feul filter, map
I would check fuel pressure, the pump could be getting weak. If it ever
completely dies out on you on the road, take a hammer and bang on the gas
tank while someone tries to start the truck, this could allow it to run just
a tad bit longer perhaps enough to get the vehicle off the road.
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.