TBIThrottle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.
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okay to start, 2 summers ago i changed the intake gasket on my 92 firebird formula. soon after i did that, it began to smoke pretty bad. no unusual noises to go with the smoke. It starts right up, even after sitting all last summer and winter. Im just curious to what you guys think could be wrong. I've replaced the intake gasket several more times, thinking that it didnt seat right, and its sucking oil into the combustion chamber. but it still does the same thing.
First off what color smoke is it? Does it smoke all the time? Have you done any mods to your motor? How many miles are on the motor? What motor is it? All these questions should be answered. You willl get more responses if you provide ALL the details of the problem you are having. -Russ
if its blue smoke, its time to change out your valve cover gaskets most likely. otheriwise if its anything like my 305 tbi that has been sitting all winter, the rear main seal may be leaking and burning off on the exhaust like mine now is... oh well time for my "new" motor lol.
__________________ 1988 Trans Am 138,340 miles,(The Project- 357 swapped bored ."40 Carb'd/ Built TH700 R4 w/ Hooker Super Comp headers, Holley 750 DP Mechanical Sec., 98' Vortec 062 Heads Ported and Polished, 7/16" studs, Comp Cam 1.6 Aluminum Roller Rockers, Comp Cam XE285 .508/.512 Lift 262/282 duration, Comp Cam Beehive springs, TCI StreetDemon 2400-2600 Stall, EdelBrock Performer ESP Vortec Intake Port Matched, Aluminum Under Drive pulleys, GM 3.73 gears, Custom True Dual and 3" Cutouts, MSD Ready to Run E-Curve Distributor/Ignition, Edelbrock open element w/ 5" K&N air filter, Redline 700R4 with B&M shift kit w/ Corvette Servo, Hotchkis Subframe Connectors, Nitto 555R Drag Radials) Other cars: 1999 Grand Prix GT, 1992 Camaro RS (roller)
okay the smoke has a very light blue tint to it, its a 5.0 tbi , no mods, and theres about 145,000 miles on it. i just cant understand why it would start doing this within a day after changing the intake gasket. it has been sitting for awhile but when i started it up yesterday it was doing the same exact thing. it didnt smoke anymore then it did before i parked it.which leads me to think its NOT the valve seals. if it were, i would get a huge puff upon startup. not it this case. it starts up with no smoke, then after running for 10 seconds or so, you can see it start to come out of the tail pipes. when the engine is revved a bit, a huge cloud will come out.when i let it go back to idle it returns to a very faint cloud (barely noticable.)
Other cars: 1999 Grand Prix GT, 1992 Camaro RS (roller) 
