It it a 1993 Buick Regal Custom 3.8L. Engine. I had my head gasket replaced after I had blown it. I also had a tune up and oil change performed on it. I also replaced the thermostat. It skips really bad after I put it in drive. Someone told me to mix some Lucas oil with some 10w40 oil and that should fix the skipping.
2007-10-03 01:04:42 · 5 answers · asked by Justin T 1 in Cars & Transportation ➔ Maintenance & Repairs
10W-40 does not belong in your motor and any oil additive does not have anything to do with a motor skipping. Use the viscosity motor oil your handbook calls for. A few 3,8 Buick motors call for 10W-30 but others advise using 5W-30.
Personally I would try a 16 oz. plastic bottle of 3M - Total fuel system cleaner in the gas tank. It does a great job cleaning throttle bodies, intake manifolds, fuel injection nozzles, valves and most importantly combustion chambers. At the same time add a can of isopropyl alcohol (dry gas) in the gas tank in case there is moisture in the fuel tank.
If the above inexpensive suggestions don't do the trick. Any GM dealer can scan your onboard computer to see if your ignition module and crank trigger are working properly.
2007-10-03 01:37:55 · answer #1 · answered by Country Boy 7 · 0⤊ 0⤋
Though Lucas oil is good oil, I am not quite sure it will cure your skipping problem. By mentioning skipping, do you mean that the car "chugs" when you accelerate, or do you mean the transmission "slips"? If it is a chug, it could be that the spark plugs were fouled when you blew the head gasket. If your plugs and plug wires were not replace with the new head gasket, I would change them or get them changed. If your car is slipping, one thing you can do to possibly help it is to have the transmission serviced. This involves have the transmission filter and oil replaced. It can cost between $45 to $75, depending on the garage. If you car is slipping and continue to slip after the transmission is serviced, you could have something seriously wrong with your transmission. A GM overdrive transmission can be rather expensive to rebuild/replace, $1,500 to $2,000.
Good luck. I hope it is just your spark plugs.
2007-10-03 08:32:12 · answer #2 · answered by ? 2 · 0⤊ 0⤋
Before you can diagnose an engine or transmission problem, you have to make sure all the "tune up" basics are up to date and checked out on the car. In your case, the first question a technician might have is whether you could have an ignition spark related engine misfire resulting from spark plug, spark plug wire, ignition module, coil pack or sensors like your crank and cam timing sensors. So do the obvious first before chasing the less probable causes. If the car has never had a new set of spark plug wires, start with new plugs and wires. Then see the GM ignition information below.
2007-10-03 08:18:23 · answer #3 · answered by bobweb 7 · 0⤊ 0⤋
YOU SHOULD GET THE VEHICLES COMPUTER SCANNED AND CHECK FOR ANY PROBLEMS AS WELL AS CODES AND THEN YOU WILL HAVE A GOOD IDEA ON WHAT THE PROBLEM TRULY IS.
TRY FINDING AN INDEPENDENT SHOP INSTEAD OF THE DEALER OR A CHAIN STORE BECAUSE YOU WILL BE OVERALL MORE PLEASED WITH THE FINDINGS AND THE SERVICE.
2007-10-07 07:43:18 · answer #4 · answered by Anonymous · 0⤊ 0⤋
maybe the head gasket wasn't installed properly, your thermostat has nothing to do with it-that's for heat..make sure that the sparkplugs are correct and check your timing and your timing belt
2007-10-03 08:15:13 · answer #5 · answered by donna rowe 2 · 0⤊ 0⤋