When start the envoy for first time in the day the envoy almost die and rmp up almost 2000
and dawn up to 800 for 1 minute and stabilize and run without problem, the engine light is on
i changed the intake manifold gasket
have the same problem?
Monday, July 22nd, 2013 AT 7:11 PM
It sounds like either a vacuum leak or an issue with the idle air control valve (IAC). The IAC is responsible for maintaining the vehicle idle. If the check engine light is on, you should have the computer scanned to identify what trouble codes are present in the system. Most parts stores will do it for free and most parts stores will do it for free.