The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - '89 350 tbi 5 speed stalling and surging idle

k5hart · 11-02-2010, 09:20 AM

Could it be the dreaded EGR problem?? I know mine idled like that when it had a bad and then incorrect EGR valve on it.

I would go with Chevytech's recommendations at a minimum. He is VERY good and methodical at diagnosing things via the board (which is hard).

Keep plugging away at it and walk off when you get mad. Eventually you will find the problem. I know this from experience.

11-02-2010, 09:20 AM	#11
k5hart Registered User Join Date: Nov 2002 Location: Charleston, South Carolina Posts: 1,370	Re: '89 350 tbi 5 speed stalling and surging idle Could it be the dreaded EGR problem?? I know mine idled like that when it had a bad and then incorrect EGR valve on it. I would go with Chevytech's recommendations at a minimum. He is VERY good and methodical at diagnosing things via the board (which is hard). Keep plugging away at it and walk off when you get mad. Eventually you will find the problem. I know this from experience. __________________ 2006 Silverado CCSB, 1939 Ford Sedan, 1962 BelAir Wagon, 1976 Vega Panel Charleston, South Carolina