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Re: waste gate has nothing to do with no start issue Posted by RS [Email] (#15) [Profile/Gallery] (more from RS) on Wed, 1 Oct 2014 10:54:58 In Reply to: Re: waste gate has nothing to do with no start issue, ChrisMiami [Profile/Gallery] , Wed, 1 Oct 2014 10:27:56 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Bentley may have one, but the vacuum hose diagram that's most appropriate for your car is usually on the drivers side inner fender.
The vacuum hose that goes down towards the turbo actually goes to the Turbo Bypass Valve (hooter valve) and doesn't interface with the wastegate actuator.
FWIW, whey you're replacing vacuum hoses, the safest procedure is to replace them one at a time so the routing doesn't get mixed up. I replaced the ones on my '89 with silicone soon after I got the car.
If you're feeling adventurous, you can include popping off the lower dash and replacing the vacuum hose that goes to the pressure transducer and branches off to the APC gauge.
While you're replacing vacuum hoses, it's a good idea to replace the rubber bushings that hold the vacuum nipples to the intake manifold and PCV fitting into the cam cover. They get soft with oil exposure and deteriorate. Great sources of vacuum leaks. The bushings are available from eEuro.
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