C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

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Old Aug 1, 2006 | 12:40 AM
  #1  
ED HEISER's Avatar
ED HEISER
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Burning Brakes
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From: OAKLEY CA
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My 88 A4 was running great unitil I spent the last two days running around town in 100+ heat. I never use it for stuff like this, short trips, stop and go traffic, long idling at lights, traffic downtown is getting horrible. But I had to. By the end of today it was running so rich I could smell it, and was way down on power. I let it cool down, and thought about it. I just went out to the garage and slowly poured about half a can of Seafoam through the vacuum hose that goes to the brake booster while it was running. I took it for a ride, and it ran great, full power, no rich smell. I was amazed by the difference.
Is this loading up caused by clogging injectors in high mileage (162K) L98's or what? I had the same problem several months ago and used Seafoam to cure it. This is certainly easier and cheaper than a new engine, so I'm not complaining, just curious as to the cause and future prognosis.
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Old Aug 1, 2006 | 07:54 AM
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runner140*
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Sounds like it got carboned up a bit and SeaFoam sure does one thing, gets rid of carbon. I guess it works, worked for me.
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Old Aug 1, 2006 | 12:32 PM
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rick lambert
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What spark plugs are you running?
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Old Aug 3, 2006 | 11:38 AM
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Burning Brakes
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AC Delco. .35 gap.
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Old Aug 3, 2006 | 11:41 AM
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I think Rick means what heat range.
It also sounds llike something is not allowing the comp. to make calculations/changes based on sensor input.
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