Main Menu

1986 911 Carrera hesitating motor

Fuel System

Vehicle Information: Model: 911; Year: 1986; Body Type: Coupe; Engine (type, size, modifications): 3.2; Total Mileage: 71,000;

My 86 Carerra is also experiencing intermittant shutdowns or burping. The first time it happened it shutdown completely. I smelled gas and although it would turn over it wouldn't start. After 5 minutes it started right up. My mechanic suspected the GME relay and replaced that. The problem continued although it would hesitate and burp if I put the clutch in it wouldn't shut down completely. Mechanic hooked up a fuel pressure guage and it was O.K. but he suspected the fuel pressure regulator which he thought had cleared itself. I drove it for another month without any problems. The problem reappeared and the fuel pressure regulator was changed out and the problem continues. I've read others with similar problems and it appears to be a variety of fixes, eng. temp. sensors,intake manifold leak, faulty air sensor DME connections, fuel pump, F.I. harness. bad injectors, vacuum leak.Stephen, it seems to be a fairly common problem. Has the factory ever addressed it? Where would you start?

You must log in to view answers associated with technical questions. Join PCA to participate in our community.
No votes yet