20 Most Recent 2001 GMC Sonoma Extended Cab Questions & Answers

Remote Control Door Lock Receiver (RCDLR) On the left I/P sound insulator

Check to see if the panel fuel gauge is showing the correct amount of fuel. If that's ok then the fuel tank float may be bad.

sounds like it could be plugged injectors or a timing problem.

here is a nice video https://www.youtube.com/watch?v=8nX5HARPSF4

Or bad float !!

Check the idle control valve. Just an idea

Body ground

Reset the computer & check the fuel PSI. You may want to replace the gas filter. when u run dry, the filter picks up all the dirt at the bottom of the tank. Make sure your gas PSI is good before u get into electronics. start w the basics. That would set that code too trying to start dry.Good luck

You could avoid that by taking it to a qualified repair shop ! Because it obvious you do not know how to do automotive electerical testing ! How to voltage drop test starter motor circuit First off you need to know how the system works , all componets in the circuit . How to find a wiring diagram , how to use a volt meter . And in a lot of caes the ignition switch is a input to a control module , BCM - body control module ,PCM - powertrain control module etc... Starter Voltage Drop There is also a park neutral safety switch , starter relay in the under hood fuse box . Electric Testing Techniques You Need to Know How to Diagnose No Crank No Start Issue Nothing or only Click When the Key...

Check fuses, headlight connector, headlight bulb and is all are ok replace headlight switch.

It depends on the vehicle. 9 times out of 10 this code means the thermostat has failed, of course I'd try that first. I do not know what mechanical skills you possess or what type of vehicle you're asking , so I can't really answer the second part of the question. Some tstas are easy, other ones require a lot of work.

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There is no magic fix button on your truck. You will need to perform standard diagnostics on the truck to determine the problem or, if you do not know what steps to take, have a competent mechanic diagnose it for you.