Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Hello, my name is***** you tell me how many miles are on the truck?
Thanks for getting back with me. You want to start by making sure that all of the intake hoses are tight. If those are fine then most of the time the issue is in the MAP sensor itself. If the truck was driving fine and if the turbo does not appear to making any strange noises then replace the sensor. It is a common failure, much more common than a mechanical or wiring issue on this truck. Please let me know if you need more help.
Before we go into the readings of the wires, can you tell me how the terminals in the connector look?
Yes. If the terminals look clean and tight.
One last question. New or old body style?
Thank you. The sensor is more than likely bad. You can test for reference voltage there first. You need to turn the key on and test for voltage at the orange/black wire. It should have right at 5 volts. If not then there may be a circuit issue.
The MAP sensor should only have 3 wires on it.
Can you tell me the colors of the wires on the sensor. I think you may be looking at the wrong sensor.