Question about 2001 Chevrolet Silverado 2500HD

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My 2001 chevy diesel truck is very hard to start below 35 degrees

The dealer can't find the problem and has changed filter, etc. Could the turbo allow fuel to leak back in the line at cold temps?
Today it did now want to start. Initially after the engine turned over about 12 revs I stopped turn off the key and let it set for 30 seconds then allow a little extra time after the "wait to start" light went off. Then it started after about 7 revs.
Any ideas and is it a typical chevy diesel issue?

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  • rockycaliche Nov 20, 2008

    The dealer claims that if the g plugs were a problem then you would get a "check engine" light and a code when checked.

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You may be right about the leak back.
The 6.2 diesels are bad for hard starts due to fuel bleed back.
I resolved this by installing a inline fuel pump to help the mechanical pump, I have since disconnected it but it acts as a check valve.
GM has a service bulletin out on it.
Check your model for service bulletins GM doesn't like to admit these design faults.

Posted on Dec 29, 2008

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Check the glow plugs usually nd external check would indicate power to the plug but in your case i would suggest you to pull atleast a couple of plugs and makes sure that they are getting hot you will find that the plugs are not working replace the glow plugs and the engine will have no problem in starting adn if you live in a cold region make sure that our electric corde is plugged in all night since the diesels need to be warm to operate necause they strictly work on heat from the engine and they do not have spark plugs to ignite the fuel.

Posted on Nov 19, 2008

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