20 Most Recent 2008 Chevrolet Impala Questions & Answers

You just remove the AC compressor and replace it with an AC Bypass Pulley. The belt and routing remains the same. https://www.google.com/search?q=2008+chevy+impala+ac+bypass+pulley ..

Incorrect censer adjustment .

Check that the shifter cable is still attached to the shift lever at the transmission. It's a fairly common issue for this year for the nylon bushing on the end of the shift cable to get brittle and break. This causes the shift cable to become disconnected from the shift lever.

It is inside the transmission.

it needs service not told./ 1: cranks fast? GRRRRGRRRRR (sound for 14 years heard) 2: cranks okay but will not start or stay running (the engine) 3: engine seems ok but runs but all GEARS PRNDL R D and L are dead. they all ran perfect before. but not today. if engine is and RPM go real high in D(drive) and R (reverse) that is called transmission failure and and can be simple or hard $$$ tell more get more , telling the blind.

Question edited for clarity. Question moved to category. If you have to shake it to get it to work, you have a loose connection or a bad, or corroded connection in a plug to the box. You just have to find it. I am not sure what box it is, but the Fuse Box and the Engine Control Module, should be bolted down..

You either need to change the throttle position sensor or the gas pedal I got a 2008 Impala I had to put a new gas pedal in in so it would function properly

Hello, the obd connector is under the drivers side of dash number 1 in picture below

The location is number 1 in the picture.

sounds like a blown fuse

The diagram should be available ion the panel above the radiator, In case its not there, you can refer to the following image:

Make sure it's all the way in "park", and try wiggling the steering wheel while you turn the key. Pretty new car to have problems like that.

My Chevy Impala is a 2009 and it's doing the same thing the radio the windows all of that works but when I try to turn the key it just makes a click sound and it won't start when I try to jump start it so I let it sit for a day and the next day it worked when I try to start it I went to the store and ran some errands I started it like 10 times and then all of a sudden it did it again it was a short in the starter wires when I when hit a bump the starter wires would touch

Hi, have you tried changing the oil filter? Or check the selector where it goes directly into the box, otherwise the selector inside the "brain" of the gearbox is knackered. Unfortunately the only way to fix it is virtually a full rebuild but I'd definitely check the filter first. Regards, Neil

It's probably nothing worse than a strained or broken shift linkage It'll need to go into the shop, but if it is just the linkage, it wont be to expensive. HOT TIP: Get better security on your car to stop it happening again. It'll be cheaper than fixing the damage

Check fuel pressure

Building on Mr Hooper's answer ... if you have managed to short something out as part of the ignition switch it could be one of the RELAYs in the engine compartment....box is near the passenger side firewall. I would evaluate the "STRTR" relay which is one of the larger ones in the box on the upper right hand corner. Sometimes if there are 2 identical relays in a box you just switch them to see if that changes anything, but for this Impala it does not look like there is a twin relay to play with. If you are handy with a multimeter you can check the relay ... watch video for some pointers to do that ... even if you do not have the internal wiring of the relay Good luck on your troubleshooting. None of the handful of fuses in the passenger compartment (shotgun side down by the kick plate) look like they have anything to do with the ignition/starting circuit.

You would need your diagram that shows your fuse locations and values- replacing a fuse that is not blown can not hurt at all so just replace them both with the same values, if you are unsure putting a smaller size will not hurt, if its too small it will simply blow and when you replace it you know to go higher, you can also call chevy and ask they can give you the values or check the owners manual https://www.6ya.com/mr.mike good luck

Sound like a problem with the Neutral Ssafety Switch, this is located on top transmission (generally) and its possible that need some adjust.

Water in intake