Showing articles & questions for topic
V6-3.8L Turbo

Related questions

Question
When I accelerate, my car hesitates, the rpms bounce, and sometimes i have a missfire flashing CEL
Hello and thank you for your question. With having your engine with bank 1 being lean (lack of fuel), the symptoms are showing that there is a problem with fuel delivery or excessive heat. If the EGR valve was to...
Question
Car runs hotter than normal on express way
Hello. If the car is running hot at higher speeds, then that typically means it has a clogged radiator or a thermostat that is not fully opening. It can also be caused by a slightly leaking head gasket. I usually...
Question
Cooling fans
This can be caused by a number of things such as low coolant levels, a faulty thermostat, or a failing coolant fan switch. As you may know the coolant fan switch helps to maintain the proper coolant temperature by turning...
Question
I think my cars transmission is going out
Hello. Grinding noises at high speeds could be related to wheel bearing or transmission issues. This type of problem may be difficult to diagnose without test driving the vehicle to determine whether or not it is worth fixing. A certified...
Question
Car only drives in reverse now
Hi, thanks for writing in. Most likely, the "forward apply band" has failed in your transmission. This failure will affect all forward gears as you are experiencing. This should be diagnosed by a reputable transmission shop who can confirm this...
Question
Headlights/Tailights/Turn Sights do not work
Hi there. It appears that you are not getting the right voltage to your lights. Most of the time this is caused by a failure in the multifunction switch. This is the switch that turns these off and on. I...
Question
When changing signal stalk do you have to disable air bag?
Hi there. On most vehicles, including your Pontiac Grand Prix, you'll have to remove the steering column and the air bag housing in order to replace the turn signal indicator. This is due to the fact that there are connecting...
Question
Car doesn't run right - 2005 Chevrolet Impala
Hello and thank you for contacting YourMechanic. You will need the check the idle air control valve (IAC). It is located just under the throttle body where the throttle plate is. Unplug the harness and check the plug for any...
Question
Misfire at hard thottle, rpms either dont go up when accelerating, or slowly drop as i accelerate
Hi - check your vehicle's fuel pressure when running, and under load. Your comment regarding "fuel trims ...erratic" gets my attention. If the pressure is not correct, check the fuel pump relay (possible burned contacts) and fuel pressure regulator. If...
Question
Loses power when reaches a certain speed limit sometimes it works sometimes it doesn't when it works cruise control works
Hey there. This may likely be related to a bad O2 sensor. As you may know, the O2 sensor monitors the oxygen content of the exhaust gases as they leave the catalytic converter to determine how much additional fuel to...
Question
Heater blower
If the blower motor does not respond to on and off commands at the switch, generally the switch is faulty. The turn signal issue is probably not related to the problem with the blower. If you hear the flashing unit...
Question
No power to the car after replacing the ignition switch.
Hi there. Check the electrical wiring in the steering column and make sure that the wires are not crossed. This will cause the system to bypass the switch and go back to the battery. Back track all of the wires...
Question
My car dies while driving and now it won't even crank. The lights still come on though.
There seems to be a combination of problems going on with your vehicle. First thing to address is whether you want to keep the aftermarket remote start. If not, the ignition switch system needs to be restored. Bypassing the remote...
Question
Insert the key go to start everything. Goes blank releas back on battery is good starter also possible neutral safety switch or ig
Hello, thank you for writing in. Looking into and testing your ignition switch is the next step of your diagnostic process. If you have a voltmeter, you can test for voltage on particular terminals and see if the ignition switch...
Question
Car makes one click and won't start
Generally, this type of clicking sound will be heard when the starter solenoid is bad or the battery is simply just too weak to turn the motor over to start. Since you just replaced the starter, it is likely that...
Question
Small engine fire, Put out w antifreeze.
I would recommend letting the vehicle cool completely and then wash off oil with soapy water and a soft brush and rinse real good with low pressure water. Let vehicle dry and then you should be able to start and...
Question
Car wont start
This may be related to many different possibilities, some of which may be related to a lack of spark and some of which may be related to a fuel delivery problem or a combination of both. For example, if the...
Question
Won't turn over. No crank.
If the alternator quite working, this will mean the battery is likely discharged, which would be a normal condition when an alternator fails. The starting system uses ten times the current of every other electrical system on the car. It...
Question
Bad Ignition switch Symptoms
If upon actuating the ignition switch you hear "crackling" noise in the dash, that could be due to arcing or a faulty component such as a relay that happens to be in the circuit that you are powering with the...
Question
I need some idea of why my car won't start?
A no start diagnostic performed by a certified mechanic will give you a definitive diagnostic based on your specific circumstance but broadly what you should look for is the following. First, make sure the gas is fresh. If old, it...

Need a mechanic?

Our certified mobile mechanics make house calls in over 700 U.S. cities. Fast, free online quotes for your car repair.

Get a quote

Post a question and get free advice from our certified mechanics.


Ask a question