Question about 1996 GMC Suburban

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96 GMC Suburban keeps stalling after 25 miles of driving

The wierdest thing.My 96 Suburban with a 6.2 L V-8 Turbo Diesel engine has 3 times stalled out on me after roughly 25 miles of driving on the highway at a constant speed of 60 mph.No check engine light,no warning lights at all.It will sort of sputter,die momentarily, then sputter on then die completely.It will start back up no problem but the sputtering and dying will persist.
I've had these conditions while troubleshooting over the last three days and I am stumped.Any feed back would be appreciated.Thank you.

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There is air getting into the fuel injection system or fuel starvation, do an engine flush and check the exaust at the manfold, also check the gasgets and glow plugs ( these are like spark plugs but they are for gas cars) if the car stalls when on tic over, say at red light's then check the timing belt

Posted on Nov 16, 2008

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Check fuel filter replace it then bleed system.

Posted on Nov 16, 2008

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You might run some diesel additive to your fuel it could be water causing it to stall out.

Posted on Nov 16, 2008

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