Slow cranking upon starting

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Jul 15, 2007 | 10:20 PM

Buicksx2

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Junior User

Joined: Jun 2003

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Slow cranking upon starting

Hi All,

I noticed a problem lately with my 99 PSD, it seems that when I go to start the truck it is real slow in cranking over almost like batteries are going or dead but it eventually turns over.

I cleaned up battery terminals and it's still the same. I ran truck to my buddy who is a mechanic and both batteries are over their cranknig amps and alternator and everything is charging fine.

I bought the truck with 200K on it and it now has 202K on it and since I bought it on Ebauy I don't really have a sense of the history other than what I got from the dealer.

If the truck needed glowplugs would that cause a slow cranking situation?

Thanks in advance fro any and all help.

Jul 15, 2007 | 10:24 PM

Uzumati

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Joined: Jun 2006

Posts: 5,497

Likes: 7

From: Central, Al

Check the voltage at the battery during cranking. It must remain above 10.5VDC.

Could also be the starter binding up is the voltage checks out.

Jul 15, 2007 | 10:31 PM

Tenn01PSD350

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Joined: Feb 2006

Posts: 11,892

Likes: 2

From: Middle Tennessee

Also, check your connections at the starter solenoid, and the starter itself. While doing that, have a look at the connection at the GPR, but only because you're checking things anyway. Might even try jumping the solenoid to see if it cranks better. May just need a new solenoid.