2.4 Vs 3.4 Reliability!!! [Archive] - GrandAmGT.com Forum

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miko
02-09-2004, 09:13 PM
first off, im looking at a alero, but they don't seem to have alot of good forums, so i figure this is a better place to look. the reason im looking at a alero - resale blows, which is good for the used buyer :D

if someonw could care less about performance, which engine is more reliable? id imagine the 2.4 gets better mileage?? both use the same transmissions?? any insight would be great, im looking at a 2000, and i want somthing reliable, performance isn't as important, but still would be nice.

i thought i heard the 3.4 was a bored (or maybe stroked) 3100, which is a very reliable engine, and im sure its got some upgrades too.

thanks in advance

lucky13rme
02-09-2004, 09:49 PM
The gas mileage is surprising closer than you'd think. I have the 2.4 auto and my brother has an 3.4 Alero, we get basically the same mileage in everyday driving. However I get better on long highway trips. The trans are different between the two. Watch out for the intake gasket on the 3.4 seems to be an issue. There are people on the board here with over 100K on ther engines both 2.4 and 3.4

atc3434
02-09-2004, 11:04 PM
Both motors are actually pretty decent. Consider this, the 2.4 makes 150hp with its 2.4 liters, the 3.4 only makes 170hp with a whole 'nother liter. What does this mean, well, for one, the 3.4 is less effcient, however, this comes with a benifit, the 3.4 obvious doesn't work as hard to produce its power, which equals longevity in the long run. And yes, its is a bored 3100 engine, which is basically a very strong engine, barring the notorious intake gasket problems.

Gt00
02-09-2004, 11:29 PM
The 3.4 also has alot more torque , which the 2.4 can only dream about without a turbo or other power adder . And torque is what rules in most driving situations .

tenspeed
02-10-2004, 05:59 AM
I get around 30 MPG - 96 Achieva 2.4L 5 Speed - 173,000 miles - changed oil and filter every 5,000 miles.