Well it depends on the model, but they are all mostly the same, and not to hard to do. Your only looking at about 4 bolts, and 2 nuts. There are 2 upper bolts (13mm) 2 rear bolts, with nuts on the back side (also 13mm, but the nuts are usually 12mm) Then 2 more nuts in the middle, supporting the exhaust to a bracket. You will need new seals for the new exhaust, and I also highly recommend getting 2 new upper bolts. One side can be easier then the other, because it has a 'butt-joint' where it connects to the rear portion of the exhaust, the other side has a 'slide-joint', and usually requires the other side to be loosed to help remove. Also remember that there are 2 oxygen sensors that will need to be unplugged and transfered over to the new exhaust. (22mm) I would start with removing the 2 upper bolts, next remove the 2 rear bolts and nuts. Then remove the side nuts last while supporting the exhaust. then the exhaust can be removed down at the rear and out. Good luck, anymore questions....just ask.

how do i changes back up lites on a 2001 QX4 infinte

The code to reset the radio is specific to your car. No one will know that code. If you cannot find the code written down somewhere, contact your Buick dealer for instructions on how to get the code. The radio may need to be removed to get the radio serial # and with that the code, or the selling dealer may have it on file.

Disconnect the TPS sensor connector. It's the lower of the 2 connectors. The other one is the idle sensor. Turn ignition key to on. At throttle fully closed, the reading on termial C of the connector should read 0.4v to 0.5v. (Looking INTO the connector with the notch on the connector pointing UP, C is the right most pin) At throttle fully open, the reading should be 4v. If readings are wrong Loosen the 2 holding screws (only enough to twist the sensor). Adjust accordingly. Tighten the screws.

no problem as long as it is unlead gas,i filled up with my 2002 qx4 and find no big difference as the 91 premium gas.

Could be many things. The compressor might be broken--try running the car with the AC off. Have a helper watch the AC compressor and watch to see if the compressor tries to engage when you turn the AC on. The system might be low on refrigerant--only certified mechanics will be able to refill it, so you might as well take it in and get it checked out. You may have an electrical problem in the switch assembly, or harder to find still, you might have a cabin thermocouple that is telling the thermostat that the car is freezing cold, so the AC never needs to come on.

if your vehicle has air conditioning the smell could be caused by build up of bacteria on the heater matrix and in the vents, as this bacteria decays it causes a smell inside the cabin, this can be resolved by purchasing air specialist air con cleaner the is sprayed into the sir vents. the smell can also be caused by the heating of leaking coolant from the heater matrix, this would also combined with the car steaming up, check the coolant level to see if it has dropped.

Ventilation filter: 1 - Behind glove compartment 2 - Behind lower instrument panel. 3 - It's clipped in. 4 - Remove lower filter, slide down upper filter, remove ventilation air filter. 6 - Replace and put clip back on.

i want to no how i can oprate my nvigation system on my qx4 2001 ples how i can play the navigation system on my qx4 2001 infinti car

oil change

tire rot/bal

wiper replacement

new air filter

new fuel filter

new in-cabin air filter (2000 and up)

front and rear differential fluid replacement

transfer case fluid replacement

coolant flush

set timing and idle

force-clean fuel injectors and reset iac valve position

perform transmission system cleaning, flush and refill with all new fluid and conditioner.

A 1999 Infinity Qx4 has an engine oil capacity of 6 quarts. The Infinity uses 10 W 30 engine oil. This oil can be purchased at any auto parts store.

No

The 1997 QX4 has 5 equally spaced markings on the Crankshaft Pully.

The most left marking is TDC. Then the next marks to the right are 5,

10, 15 and 20 BTDC. The correct timing for this model vehicle is 15 Degrees

BTDC. To the best of my recollection you are permitted +/- 2 Degrees. I read one source that said the vehicle should be in N.

infinity has all of the zeros

you cant, unless you have a oxy/acetylene torch take it to a muffler shop they're the pros

I have not found one. There once was a post online stating it could be done by pressing and depressing the gas peddal and turning the ignition off and on in the right sequence. Tried it several times and it didn't work. AutoZone sometimes will do it for free. No harm in asking.

(Alternate method) This will work if there only was a temporary problem like a loose gas cap or whatever item that caused the problem was corrected:

1. Lift Hood and set brake for security.

2. Disconnect both positive and negative cables to the battery using a #10 open and closed end box wrench.

3. Since you did that you may as well clean the terminals (optional).

4. Reconnect the cables to the battery.

Re-start vehicle. Your clock and radio settings will need to be reset.

This method should clear only erroneous check engine lights. If light stayed on there is a larger issue that needs repair before engine or smog control damage. If the check engine light went out but after driving for 10 to 20 minutes the light came back on you can try the method one more time. If the light goes back on after that then there is a problem that will requires repair.

Many part stores or auto repair facilities will use their portable hand held computer to diagnose the problem. Depending upon the auto repair facility they may not charge you a fee but hope to get your business. It takes all of 10 minutes to do in the parking lot.