I recently replaced my alternator last month and I have noticed a decrese in fuel economy.
Do Alternators affect fuel economy in any way? This is assuming that no other factors are changed like tire pressure or tune up.
Thanks
God made man....Everything else...Made in China
QUOTE"And, as always, your friendship, help, and dedication to the advancement of Texas Celica dominance is GREATLY appreciated. Thanks bro." -DEATH1994 GT:V6 swap, 5speed E53 W/ LSD, All Power, now RED1995 ST:SOLD @273k miles, Auto, all power, CarPC, White1994 ST:Totaled, 5spd, all power, RedRIP 07/09/09 @ 241,8101994 Lexus LS400:This is my new DD
The alternator runs off of your engines power. Just like EVERYTHING else in, on, or attached to your car.
Add weight, lights, system, roof rack, etc will affect MPG.
A new alternator has tighter bearings = more drag on the engine. Or maybe it has a lower efficiency which means it takes more torque to produce the same amount of amps.
I wouldn't expect a noticeable drop in MPG though. maybe 1 at the most. was the belt over tightened? That will cause unneeded drag. Are you sure nothing else changed?
QUOTE"And, as always, your friendship, help, and dedication to the advancement of Texas Celica dominance is GREATLY appreciated. Thanks bro." -DEATH1994 GT:V6 swap, 5speed E53 W/ LSD, All Power, now RED1995 ST:SOLD @273k miles, Auto, all power, CarPC, White1994 ST:Totaled, 5spd, all power, RedRIP 07/09/09 @ 241,8101994 Lexus LS400:This is my new DD
Just the tire pressre was low. I will see on my next trip to SoCal if that was just the tire pressure.
How will I know if the belt is too tight? When I replaced it, I went to autozone to get it checked and the guy said that the tension is fine.
God made man....Everything else...Made in China
