I have a Colorado 5 cilynder motor 3.7 Vortec. Itá an automatic one. I ride and suddenly as I stop accelerating even if I don´t press the brake the motor stalls. If I want to restart it I have to press the acceleration pedal in order to restart. And as it start to heat the revolutions fall down beetween 500 and 600 revs. When its hot it shivers and stops. The guy at the scanner told me that the timing chains are bad adjusted. Also he told me that in the rear of the motor there are a second timing chain taht balance the motor. What do you think.
JA: Whether it's at the end of the driveway or on the highway, a car stalling can be dangerous. The good news is the mechanics we work with have tons of experience dealing with all kinds of engine
issues. How old is the battery?
Customer: It´s a new one. It starts with no problem. Trouble is that I changed the motor
JA: Does the car stall out mainly when going up or down hills?
Customer: No hills, it stalls when you are going to a crossroad. As soon as you keep out the feet from the acceleration pedal.
JA: Got it. I'll pass this info along to the mechanic so that he can get you a quick fix. Are you hoping to fix this yourself?
Customer: Yes Pearl. I´m hoping to fix it my self but what I dont know where are the timing marks in the front and the rear
JA: Great! What have you tried so far?
JA: Is there anything else the Chevy Mechanic should be aware of about your Chevy?
Customer: I dont think so
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Chevy Mechanic about your situation and then connect you two.