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V6-3.1L

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Replaced egr valve and drive cycle for egr and evap won't complete
Hi Jeremy. Thanks for the question today. The type of digital scanner used can significantly impact the ability to clear codes. So, if you're using a generic code reader that does not have Chevrolet-specific software to access all OBD-II generic...
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Q: Catalytic converter
I would first check with another exhaust shop to get a second opinion. Sometimes the metal used or the flex pipe location will not allow a new pipe to be welded in.
Question
Q: Flex pipe
As I said before it can be replaced without replacing the entire converter assembly. If you google search the exhaust on your car you will see the flex pipe can be purchased separately. All you need to do is get...
Question
Flex pipe leak
The flex pipe broke due to the motor mounts are bad and mounts should be repaired first and then an exhaust shop should be able to just replace the flex pipe for you.
Question
WHEN HITTING BRAKES, REAR END SHAKES,JUMPS AND MAKES A LOUD GRINDING SOUND
If the noise is due to worn brakes alone, the pad material may be completely gone and thus the metal backing plate is grinding against the brake rotor when you apply the brakes. It's possible there is part interference as...
Question
I have a 97 Buick century and when I'm driving the speedometer is bouncing and when I'm driving it starts to jerk sometimes
If the vehicle speed is constant, but the speedometer reading is erratic, there is a fault in the gauge cluster or in the signal from the transmission. If, though, you are referring to erratic engine operation, perhaps just at low...
Question
Overheating and battery draining.
Go look again under the hood and be sure that the serpentine belt is intact. It could be as simple as that since the belt drives the water pump and the alternator. As for the water, using water in the...
Question
I've got a 2003 Buick Century 3.1 engine. I have replaced the head gaskets, radiator, thermostat, water pump,and heater core and a
This is usually caused by air pockets in the system. Purge air from the cooling system and see if this fixes the problem. You may have a slipping serpentine belt and should check it for slipping.
Question
Both Of My Car Fans Keeps Running While My Car Is Off
If the fix consisted of disabling the automatic control of the cooling fans, it will actually be easier to just fix the original problem and restore the car to normal (intended) operation so that you don't have to use the...
Question
High pitch squealing while accelerating. New water and power steering pump
Hi Brandon. Thanks for contacting us tonight. A squealing noise is typically caused by a loose belt - like a serpentine belt that drives the water pump on your Pontiac. It's also possible that one of the pulley's is causing...
Question
Q: I have a 2003 Chevy Malibu I'm trying to add transmission fluid to it since I don't have a dipstick to check it how many quarts
If the dipstick is missing for your transmission, it would be somewhat difficult to determine if the fluid is at the correct level or not. I would strongly recommend having a replacement dipstick inserted before adding any fluid to the...
Question
Q: I have a 2003 Chevy Malibu I'm trying to add transmission fluid to it since I don't have a dipstick to check it how many quarts
If the dipstick is missing for your transmission, it would be somewhat difficult to determine if the fluid is at the correct level or not. I would strongly recommend having a replacement dipstick inserted before adding any fluid to the...
Question
repairing broken camshaft damage
If you replace the block and heads, it is normally recommended to replace the internals of the engine as well. If the camshaft is the only thing that has broken, it is possible that the camshaft and lifters could be...
Question
Died while driving.Crank no start got fire got fuel rpm registering air coming out of exhaust when cranking what else can I check
You may have a bad camshaft or crankshaft sensor and not getting injector pulse. Have the computer scanned for codes to one of these sensors and also check fuel pressure with a test gauge to make sure you have proper...
Question
My check engine light is on even after replacing both O2 sensors.
When a car has as many miles as your has, the problems really start to stack up until it seems like everything happens at once. Reading and interpreting the codes can be more subtle than it appears.The guys at the...
Question
my engine light still comes on after i replaced the 02 sensors and the idle air control valve .now the code is low voltage on bank
The codes describe the conditions in the circuit. A low sensor voltage code may not mean the sensor is bad, it might mean there is a problem in the wiring harness or in the relay for the sensor heater. I'm...
Question
my99 3.1 gm idles up and down replaced the iac and egr what gives then dies but driving its ok
You most likely have a intake vacuum leak. You should have the computer scanned first to make sure you do not have a TPS problem or other sensor issue. Pinch off the vacuum line to the brake booster to see...
Question
2000 Buick century stop accelerating while driving,it did not shut off over heat did not smoke, I check trans fluid it was ok
The computer may limit engine power if it detects a system problem. You will need to have the computer scanned for codes stored in memory to see what has caused the loss of power and acceleration. You may have a...
Question
Keep getting p1404 code on a 2003 Chevy malibu
It is very possible that the egr valve itelf is the cause. It is also possible that the egr tube could be clogged up.
Question
Car Vibrating and bottoming out
The basic condition of the engine can be verified through a cylinder compression test. If the compression in each cylinder is within factory spec., there is not too much variance across cylinders, and you are not using more than a...

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