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Re: Your car may be constipated.... 700 1985

I'm not 100% sure the temp gauge is related, but a restricted exhaust system would behave as you describe and cause the engine to run hot at higher RPM.

I say, just have it tested...any mech. should be able to test for exhaust back pressure.

Then also do all the normal tune up stuff, clean throttle body, update turbo and vacuum hoses, etc. What I'm saying: check the simple stuff first and make the car stock. If this doesn't work then start thinking rocket science.






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