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Old 04-15-2008, 08:45 PM
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Blazin72 Blazin72 is offline
You got a leaky spark tube...
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This is a very informative site that may help you out:

Originally Posted by Bull_81073
I know that technology has come a long way from the vehicles I'm used to working on but I think that the power brakes still use vacuum to do the boosting.
Originally Posted by Bull_81073
Diesel engines don't use vacuum!
It's not just diesel pickups that use Hydroboost systems. I know that at least the 3/4 ton and up gas powered GM pickups also use Hydroboost. My gas '00 Silverado has it, my friends gas 97 has it and my uncles '93 Suburban, also gas, uses it. It works great.
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