Egr
Thread Starter
Racer
Joined: Aug 2019
Posts: 253
Likes: 24
From: Oklahoma
Egr
My fairly stock 79 has all the symptoms of a bad egr; after a few minutes after warm up it surges,stalls and dies. I can move the diaphragm with my fingers and nothing changes. I spray CC and nothing changes. No vacuum leaks detected but no vacuum at egr regardless of rpm. Replaced with new egr and no difference. What am I missing? New TVS and it holds vacuum. Thanks
Le Mans Master
Joined: Jun 2019
Posts: 7,657
Likes: 2,469
From: Indiana
My fairly stock 79 has all the symptoms of a bad egr; after a few minutes after warm up it surges,stalls and dies. I can move the diaphragm with my fingers and nothing changes. I spray CC and nothing changes. No vacuum leaks detected but no vacuum at egr regardless of rpm. Replaced with new egr and no difference. What am I missing? New TVS and it holds vacuum. Thanks
Le Mans Master
Joined: Jun 2019
Posts: 7,657
Likes: 2,469
From: Indiana
Thread Starter
Racer
Joined: Aug 2019
Posts: 253
Likes: 24
From: Oklahoma
I don’t have anything like that. When I bought the car the air pump is gone along with most emissions equipment and everything but the egr and pcv . NOS original manifold and just got back rebuild on my Qjet.
Thread Starter
Racer
Joined: Aug 2019
Posts: 253
Likes: 24
From: Oklahoma
What I am really hoping for is the ability to start and drive the car to town about 10 miles away @45 (speed limit) once a week or so. It runs okay but there has to be a reason for almost no vacuum at idle. I also only get enough vacuum to operate the brakes one pump.
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Instructor
Joined: Sep 2011
Posts: 145
Likes: 22
From: San Francisco CA
Have you tried blocking off, using vacuum caps, all the vacuum sources from the intake and carb. If that solves it you can then reconnect one at a time until you find the source fo the leak.