Q: My truck cranks but won't start - 2000 GMC Sierra 1500

asked by on

First the idle was rough in mornings until truck got warm, then one day it stalled and would not start (it cranks over). I changed fuel filter and fuel pump relay truck started and ran. Cleared codes by removing battery cable and now truck won't start. It try to run but stalls immediately after. Not sure if MAF sensor or something else

My car has 150000 miles.
My car has an automatic transmission.

Hi and thanks for your question. It sounds like a bad MAF sensor and, yes, a MAF sensor can cause a no start situation. When you disconnect the sensor, the car ignores the input and, in some cases, assigns a default value to the parameter which can cause the engine to stall out, or, in some cases, not to start again. I recommend replacing the MAF sensor and the MAP sensor and retesting the system. The MAF and MAP sensor work together with the computer parameters.

If you need assistance in troubleshooting the no start issue, then seek out a technician, such as one from YourMechanic, to determine why the car is not starting.

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. My truck cranks but won't start - 2000 GMC Sierra 1500

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: I was driving home and came to a stop light and it just stalled and refuse to start.

From what you've described, there may be a piece of carbon lodged in the EGR valve. This can cause a stall and hard start conditions. This accounts for the vehicle having fuel pressure and spark still. Try to see if...

Q: clutch stiff to depress, and car wont start, battery good no clicking

Hi there. The clutch safety switch it located under the dash on the clutch pedal assembly. From what you are saying though, it sounds like a clutch master cylinder issue. If the piston binds in the cylinder then this will...

Q: Transmission issues, slips from second to fourth gear

I would start by being concerned about these wires that are spliced in. If there is another circuit that is spliced in there then it can be causing this. If there was no issue previously then it may not be...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...