Average lifespan in mileage for fuel pump / auto trans

1598 Views 3 Replies 2 Participants Last post by cocobolo95, Apr 2, 2013

Vampyr

Discussion Starter · Apr 2, 2013 (Edited)

I have a 1994 Trans Am GT with an auto transmission.
I found out after I bought the car that the odometer had been replaced and the mileage was incorrect. Because this is an analog odometer, there is no way (that I know of) to find out the correct mileage of the vehicle.

Last month, the transmission stopped shifting past 2nd gear. The mechanic said the transmission needed to be replaced and sold me a rebuilt one.

Then, just this week, the fuel pump went out on me.

So, to help me determine approximately the mileage of the car, what is the average lifespan in mileage of the fuel pump and auto transmission?
Both the fuel pump and the transmission are original and stock.

I know it probably depends on how the car was driven and maintained. I bought the car in 2008 and have been pretty easy on it, but I can't speak for the previous owner.

I would just like to get an idea of how many miles are probably on the car.
If anyone has any ideas, that would be great!

Thanks!

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cocobolo95

· #2 · Apr 2, 2013

There is no average life span for the fuel pump. It can last forever, or go bad in a week, and anywhere in between.

The automatic transmission is a little different in life span as how the owner treats the car, how many mods are on the car, driving style, etc can make a big difference in how long the transmission lasts. However, like the fuel pump the trans can last a week or the life of the car.

As an example, my 90 camaro dd has the original 700r4 automatic, fuel pump was changed in 2005, was the original that I replaced, and has held up for 8 years now.

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Vampyr

Discussion Starter · #3 · Apr 2, 2013

That's what I was afraid of.
Since the car is 19 years old, I've been estimating it to be approx 285,000 miles, (15k per year) but it would have been nice to get a more accurate estimate.

Thanks anyway.

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cocobolo95

· #4 · Apr 2, 2013

You can estimate a 15,000 miles per year, as that is average mileage. But many factors are working there also. My 90 camaro has about 155,000 miles. I know it to be true as I bought it from a friend of mine who bought the car new.

My 95 trans am has 139,000 miles on it. While I can't verify the mileage, I believe it to be correct as the general condition of the car corresponds to that mileage.

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