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Automotive Repair Car Troubleshooting Topics   Car Troubleshooting   Engine Troubleshooting   Engine Fault Codes   Electrical and Wiring   Transmission Problems Car Repair Topics   Car Making Noises   Car Stereo Repair   Heating or AC Issues   Motorcycles and ATVs   Tricks of the Trade   Truck Repair Advice Site Options:      Login   Sign up here! Latest Forum Post   mdma pills for sale : WhatsApp +33758633852 ketamine, 4-MMC, MDPV, methylone, amphet...   Buy Nembutal Oral Solution Pentobarbital.. WhatsApp +33758633852 order nembutal online in Germany (WhatsA...   Drive Shaft Repair I have a 2015 Chevy Traverse AWD. The fr...   2006 Toyoto Camry XLE Driver Side Electric Window Trouble Hello, Looking for a little brain help ...   Tierod end change caused some kind of leak Hello so I just took my car to the nearb...   2011 Dodge Nitro OBD scanner seems to drain battery in 10-20 minutes When I bought this car in summer 2023, a... Grounding Cable, 2017 Jeep Renegade Trailhawk The Cable that connects my negative batt... Rough Idle (Found new thing) Hi everyone. First of all sorry for bad ...     equipment hey yall. im a first year engineering st...   HELP I have a 1956 1/2 ton panel truck, 69 35...

Search Auto Parts Search 1977 corvette running rough Sign up here!   Email This Post Auto Repair Home>> Automotive Repair>> Engine Troubleshooting 77vette New User Aug 23, 2010, 12:47 PM Post #1 of 4 (1863 views) 1977 corvette running rough Sign In I have a 1977 corvette with a 5.7 350 L42. I am not the original owner but have owned the car for 19 years. The car has sat in a garage for long periods of time without use on a few occassions during my ownership. I have been running the car regularly for over a year. The car runs rough (sputters) when cold and when warmed up. It idles fairly smoothly but is a mess at 1500rpm. Seems to smooth out at 2000rpm but not completely. I have replaced the distributor cap, rotor, plugs, wires and all filters. None of my attempts have made a difference in a meaning way. There is a faint valve tap in the #1 cylinder. What would you suggest my next steps should be in trying to identify the problem? Hammer Time Ultimate Carjunky / Moderator Aug 23, 2010, 1:40 PM Post #2 of 4 (1854 views) Re: 1977 corvette running rough Sign In How many miles in this engine? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional. 77vette New User Aug 23, 2010, 2:20 PM Post #3 of 4 (1843 views) Re: 1977 corvette running rough Sign In Car has 67,000 miles. Hammer Time Ultimate Carjunky / Moderator Aug 23, 2010, 2:36 PM Post #4 of 4 (1839 views) Re: 1977 corvette running rough Sign In I think I'd start with a compression test on this one. It could have a sticking valve or broken spring issue. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.   Email This Post   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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