SPRAY A LITTLE LUBE AROUND THE INTAKE BY THE GASKET IT WILL PROBABLY SMOOTH RIGHT OUT COMMON INTAKE LEAK PROBLEM.
There are a few potential reasons for a rough idle on a new crate 350 engine in a 1992 Yukon. It could be due to issues with the fuel delivery system, such as clogged fuel injectors or a dirty air filter. It's also possible that there is a vacuum leak or a problem with the ignition system. Have a mechanic check these components to diagnose and fix the issue.
it should after it's started
It could be a dirty air filter or a dirty throttle body.
First thing that comes to mind is a vacuum leak. check all hoses, gaskets(carb and manifold)
I am not a pro, but mine broke the locating pin on the cam pully, which altered the cam timing. Luckily the valves do not touch the pistons! The engine was pulled and ready for rebuild when it was found. I rebuilt it anyway.
the fuel mixture is to lean and it is bogging out the engin or u need the idle control to be tweeked a little
No idea. But mine just started doing the same thing (91 Legend L automatic). I haven't started it in 1 1/2 to 2 weeks, and the same, idles normal for a few minutes, then begins reving between 1 and 2 k rpms like it's pulsing -- does the same in neutral. About to take it in on Tuesday... I would check your tps first
first step check fuel pressure at the rail with a guage
idles at 3000 will not go down 1993 grand prix gtp
My 1990 idles at about 850 and with the ac on 1100
Cinnamon Idles was born on October 26, 1975, in Chicago, Illinois, USA.
Is the gas milieage ok, check bad grounds Mine has a bad O2 sensor, does the same thing. Does It take gas when you first start it and try to take off?
Matinee Idles - 1922 was released on: USA: 4 September 1922