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03 to 02 3400
I have to put a motor in a 03 grand am gt the only thing i can find locally is out of a 02 Alero. The interchange said 03-05, realizing most of it will be the same what are the differences going to be? thank you.
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12-08-2011 08:12 PM
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There weren't that many differences in the LA1 3400 found in N-body's (Grand Am, Alero), especially between those years. It is however technically illegal to swap an older engine in a car. This is purely political, and it refers to the fact that each year emissions standards are updated. As far as I know, emission standards didn't change those years. If they did, GM got away with tuning the PCM.
The biggest difference in 3400's came in 2000 when the injectors changed, the upper intake manifold changed for the new EGR valve, and camshaft position sensor changed. Obviously, your car is newer than 2000 so these changes don't apply to you.
There are some other, smaller differences but they too are impertinent details.
Last edited by slowalero; 12-09-2011 at 10:56 AM.
2001 Oldsmobile Alero GL 3.5L 57k Medium Garnet Red-stock swap, TCE 65mm TB, Delphi 28# injectors, more later
1999 Oldsmobile Alero GL 3.4L 203K Black-bone stock, drilled/slotted front rotors, killed 4 deer and a Geo
1992 Chevrolet Camaro RS 3.1L 123k Polo Green-bone stock, 2000 Z28 muffler assembly, 2000 Z28 wheels, WS6 springs, WS6 stabilizer bars, WS6 steering box, WS6 3.45 rear axle, 4 wheel disc brakes
1988 Pontiac Firebird Formula WS6 6.0L 96k Bright Red-complete restoration in progress
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Show Me Your KITS!
the spark plugs might* be different lol
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Swapped the motor out and runs great now its not shifting right. it will accelerate but you have to lift off the pedal slightly for it to shift and it wont go into passing gear, the car downshifts but then just revs up to about 3500 and doesnt accelerate. Thinking the valve body is sticking, or maybe I should try the spark plugs. lol
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Show Me Your KITS!
check your MAF and TPS sensor and check back, MAF will effect APC pressure and TPS will effect shift patterns
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will do, I thought about the TPS but not MAF. I will do that. thanks.
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