Good Morning All,
Bought a new to me piece of **** 97 tahoe bone stock about 3 months ago to tinker with and maybe do some occasional mudding. It has been sitting for a long time, about 5 years, and needs plenty of TLC.. everywhere..
The truck idled rough from the get go and I have been trying to remedy it since. I started my tinkering with a full tune up; plugs, wires, distributor rotor and cap, fuel filter, air filter, and liberal use of carb/choke cleaner. No progress. It idles poorly all the time though the warmer the truck is the rougher the idle. The truck is also pretty difficult to start once warm (usually I goose the throttle to get it going).
Got a fuel pressure gauge and checked the pressure off and running; with the car off, turning the key to on results in immediate jump in pressure to about 60lbs. As soon as the pump audibly turns off, pressure dwindles down to zero relatively quickly. While idling, the gauge shows about 52 lbs.
What's next to test to determine what's wrong?
Bought a new to me piece of **** 97 tahoe bone stock about 3 months ago to tinker with and maybe do some occasional mudding. It has been sitting for a long time, about 5 years, and needs plenty of TLC.. everywhere..
The truck idled rough from the get go and I have been trying to remedy it since. I started my tinkering with a full tune up; plugs, wires, distributor rotor and cap, fuel filter, air filter, and liberal use of carb/choke cleaner. No progress. It idles poorly all the time though the warmer the truck is the rougher the idle. The truck is also pretty difficult to start once warm (usually I goose the throttle to get it going).
Got a fuel pressure gauge and checked the pressure off and running; with the car off, turning the key to on results in immediate jump in pressure to about 60lbs. As soon as the pump audibly turns off, pressure dwindles down to zero relatively quickly. While idling, the gauge shows about 52 lbs.
What's next to test to determine what's wrong?
