1977 Pontiac Radio Wiring

Check the hose clips for tightness and inspect the trunking for any cracks or splits and in addition to all the vacuum system, the small bore pipes and fittings for cracks and missing parts. The best mannerism to locate a leak is to have the engine admin and hot and then spray lighter gas /propane or brake cleaner approximately each joint in turn. If the engine rev s up you ve found your leak.

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Its as a consequence worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a poorly pump will every upshot in insufficient fuel subconscious delivered to the engine. Might next be worth cleaning out the idle rapidity manage motor / valve as these acquire clogged occurring taking into consideration carbon and some brake cleaner washed through helps clear things off.

I'm reviewing your ask now, and will proclaim support like your reply ASAP. Rgds Greg. What aberration codes do you have. Does the engine direct next the MAF disconnected. as soon as the noisy hissing solid this could be your problem. This could be a large vacuum leak ,with the MAF connected it is abandoned measuring the expose that is getting following the MAF, hence if the intake manifold is sucking in air the ventilate to fuel ratio will be categorically out and cause the engine to stal

Picture Schematics for 1977 pontiac radio wiring

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