Chevrolet Monte Carlo Problem Report
Chevrolet Monte Carlo Check Engine Light With Code P0171 and/or P0174
The exhaust gas recirculation (EGR) tube which connects the EGR valve to the intake manifold may develop an engine vacuum leak, causing the Check Engine Light to illuminate with code P0171 and/or P0174 stored.
my monte carlo has the check light on and dosn't run the way it should the code says i have a vaccum leak how can i find it ? - terrobelone
CHECK ENGINE LIGHT IS ON HAD IT CHECKED VERY THING IS FINE DON'T UNDERSTAND WHY LIGHT IS ON - Visitor
no heat when car is at an idel.. enigine light is on - Visitor
Problem began about 7 weeks ago. Car would crank, but not start. Towed it to dealer, where they...
IT GAVE A P0304 CODE SO I GOT THAT FIXED IN THE CHECK ENGINE LIGHT IS STILL ON
Background. Just replaced the lower intake due to a crack. Once everything was put back togethe...
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.