Q: Service stabitrak traction off check engine light flashing on an 07 avalanche changed plugs wires and throttle body tb sensor

asked by on

Service stabilitrak traction control goes off check engine light flashes hi revs down on power change the plugs wires throttle body throttle positioning sensor and mass air flow sensor code comes up P0 300 random multiple misfire on cylinders 2 4 6 and 8 truck is from Texas that is now in northeast PA

My car has 205500 miles.
My car has an automatic transmission.

The traction control malfunction may not be related to the engine malfunction(s). In any event, the engine issue should be resolved first, especially as you have misfiring which has the potential to cause follow-on damage to other vehicle components (catalytic converter, for instance). There are many, many causes of misfiring and, in the absence of an actual diagnostic, no one of these causes is any more likely than the other to be the actual cause of your misfiring. Diagnostic Trouble Code P0300 can set if you have faulty spark plugs, low compression, damage or excessive wear of spark plug wires and/or coils, faulty fuel injectors, clogged EGR valves or tubes, burned valves, improper ignition timing, vacuum leaks, leaking head gasket, faulty camshaft sensor, faulty crankshaft sensor, faulty mass air flow sensor, faulty oxygen sensor, faulty throttle position sensor, faulty catalytic converter, and others. If you want the cause of the misfiring pinpointed by a certified Mechanic, dispatched by YourMechanic right to your location, please request a misfiring diagnostic and the responding certified mechanic will get this diagnosed and resolved for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Service stabitrak traction off check engine light flashing on an 07 avalanche changed plugs wires and throttle body tb sensor

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Knocking noise from radiator and coolant coming out of overflow hose

Be sure not to drive the car if it is overheating because overheating can warp the cylinder head and/or engine block causing costly damage. The most common causes of overheating include low coolant level (including that due to sudden large...

Q: My car is overheating when the air conditioning is on - 2007 Hummer H3

Hello. Running the A/C will put extra strain on the engine and cause it to heat up quicker. If your vehicle is overheating, you should keep it below 280 degrees at all cost. This is the temperature when extreme irreversible...

Q: engine codes related

Hey there. If the codes are cleared with a scanner, check to see if they return. Maybe the system was serviced or the battery ground is loose and causing the circuit to break which could cause a lack of communication...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.