The idle air control valve will not affect transmission shift points. The throttle position sensor might though and there are other transmission controls, including electrically controlled solenoids in the transmission valve body, that might be at issue. It first has...
Hi there. The sound could be the lifters sticking and not getting oil to them. This would be for the noise lessens as the rpm's goes up. Add 1 quart of ATF Type F to your engine oil and run...
Hello - I believe the serpentine belt and it's tensioner are weak, slipping and causing both the alternator and power steering behavior you are experiencing. Both functions are driven by this belt, which will tend to slip worse when rain/water...
Hello. If you had gotten this warning message along with an overheating condition then I would be a little mindful about a possible cooling system issue. These can come and go sporadically if the issue is something like a thermostat....
This could be a serious issue and needs to be looked at immediately. It is possible a fuel leak has developed in the fuel supply or return line. This leaking fuel could be ignited and fire could result. The entire...
Typically if the unit is functioning and the wiring harness is solid, the sound should come from the speakers without any customization or reloading any software. If you didn't replace the original wiring harness, this is likely the source of...
With the information you have given it would not be able to be determined if you would have any further problems after replacing the computer. Since the vehicle is over 16 years old and has over 220k miles there is...
The upper are bolt on. For the lower, both riveted and press fit styles were used. The riveted joints can be replaced with the available aftermarket bolt on ball joints. There were many different versions (different dimensions/attachment styles) of the...
The vent hose on the fuel tank to the fuel filler neck is plugged up and is not allowing the air (fumes) to cycle through the system as the fuel is being poured. To verify this, the next time you...
This may be a sign of low transmission fluid or a faulty transmission control solenoid. As you know, automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is required, the car's computer activates a transmission...
Hello. If your car dies suddenly, accompanied by a "charge/battery" warning light, it would appear that you are having a problem with your charging system. Given the combination of symptoms you are describing, a mechanic has to first test...
The police cars have higher quality of course. But if you are talking about buying a used one, they generally beat the heck out of them and a lot of them are falling apart. That's why they are trying to...
The speedometer on your car is driven by a cable coming off the transmission. If the speedometer works, but the odometer does not, the problem is in the gauge itself. It can be replaced, or some specialty shops may repair...
Hi there. This question is very difficult for us to answer accurately, as we're not there to inspect your Cavalier personally. However, this is a job that should be completed by your insurance company or a local body repair facility....
There are 3 actuators in the 2009 Chevy Traverse model that are located under the dashboard and they all work an essential part of transforming air from hot to cold. They also direct the air to either the vent, floor...
Hello, thank you for writing in. Several issues will cause faults with the bulbs. If the dim fog light and broken headlight are on the same side, this is a good indicator that there is an electrical wiring issue. Essentially,...
You may have got oil spilled on top of the motor by whoever did the oil change. Double check the oil filter is not leaking and check oil level. If you suspect the shop did something wrong during oil change...
Hi, thanks for writing in. I'd be happy to provide my insight. This can be caused by a few things. There is a speed sensor at the transaxle that emits a signal to the computer, however if the car is...
Hello. P0770 is the code for a lock up torque converter shift solenoid malfunction. The lock up torque converter shift solenoid controls the fluid pressure of the torque converter, and the rate and timing at which it locks up. This...
I will assume you are referring to the fan that blows air through the interior vents. In this case the component in question is the blower motor and it's circuit. If the blower motor has a power and ground signal...
All of the codes are important to resolve and it is likely that the engine is performing sub-optimally due to the underlying faults that have caused the codes to set. Some of the codes implicate the air intake system and...
Hi There, It sounds like you may have a fuel supply problem in getting the proper amount of fuel to the fuel injectors. As you know, when you turn the key to on, the fuel pump is activated and the...
You were probably right to change the plugs and coils, they needed to be ruled out. But since you're not getting codes for a specific cylinder, your problem is probably a little more subtle. You might be having a problem...
