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I just recieved the filter housing cover and it fixed my problem. I have a 97 ambulance converted into an awsome camper and the housing cover was the old style being a solid cap with a filter element. It's a good bet that it was never changed! I couldn't...
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From: Edward N.
Well I replaced the rusted fuel sender and the fuel tank which was also rusted, the fuel lines I can see will be a future project. I put 168 miles on the truck without a miss, with the new injectors and no cat the thing flys from 60 mph up, mileage is...
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From: David A.
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6.5TD C/K Trucks  >  Turbochargers & Parts  >  GM-4 Wastegate Actuator, Brand New

Brand New GM-4 Turbo Wastegate Actuator. Fits all vehicles using the GM-4 Turbo, which includes 94-95 C/K trucks

GM-4 Wastegate Actuator, Brand New

GM-4 Wastegate Actuator, Brand New

Model: ssd-6422 $99.99
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Brand new GM Turbo Wastegate Actuator p/n 12456422. Fits all GM-4 Turbos. GM-4's were used in 94-95 C/K pick-ups, suburbans, Tahoes, and Yukons.

The actuator contains a diagpragm and is controlled by vacuum based on a command by the ECM. It DOES NOT contain a spring of any kind. Vacuum must match fuel rates for your diesel to work properly. This is why those spring gadgets sold by the scammers just do not work. They not only not work, but will trip codes too. The computer must be in control of boost. If you want to raise boost, you upgrade the chip or ECM. Fuel rates have to match boost. Do not eliminate the vacuum system or wastegate actuator. 

GM-4 Wastegate Actuator, Brand New

 

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