Question about 2007 Chevrolet Silverado 2500HD

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Our truck won't go over 40 km per hour and only goes to 2000 rpms

Could this be a computer problem?

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Your truck is on a limp mode, there is a fault in your drive train that the ECM recognized and is doing it's job. Your going to have to get it scanned for a DTC code which will inform you why it's in the limp mode.
Most major parts store like Auto Zone or Parts Source will be more then happy to scan for free and help you understand why and what repairs needs to be done. If it's something you think you can do, they'll have the part or order it in and will have the step by step instructions to replace or replace the faulty part.
Good luck and hope this helps. I had a friend who had problem with his 2004 Siverado and the Dealer told him he needed a new fuel filter which was a part of the fule pump and 4 new injectors. Long story short dealer wanted $1500.00, I asked him to have it scanned at Auto Zone it was multiple misfire from injectors running lean.
We changed the spark plugs, wire set, ect. (tune up) and had the fuel injectors cleaned. Truck runs great and no codes, cost was under $200.00 for parts and having the injectors cleaned.

Posted on May 11, 2009


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