1997 GMC Yukon Repair Question
did you have the coolant sensor checked??
I'm not sure if that has been checked in the past - I saw on a site they mentioned oxygen sensor and throttle sensor - just don't know where to start first.
neither has to do with what you explained.
are there any codes in the systems
Are you talking about check engine codes? The check engine light has been on for a few years now and as far as I know, the technicians that have looked at it don't know why it won't go off, although there seems to be no problem with the truck. The anti-lock brake light sticks on all the time even though there's no problems with the brakes.
if the light is on, there is a problem. have the codes pulled and give us the numbers.
I'll take care of that tomorrow and let you know. Thanks for your help so far.
I had the code read - it is P1406. They said it's an EGR Valve and I investigated what that is and I'm seeing that it is an exhaust gas recirculation - is that correct?