Skip the auto shop - Our mechanics make house calls

Q: Intermittent starting issues (takes a couple of cranks to start) & throttle surge

asked by on

The intermittent starting problems are really random and already replaced the MAF, cleaned the throttle body, fuel pressure regulator, fuel filter, and fuel pump. The throttle surge also happens and I also put in a motor cleaner (Seafoam) into the fuel and crankcase. It seemed to help with how the truck idled but can't figure out why it's hard to start.

My car has 286345 miles.
My car has an automatic transmission.

Hi there. From the description you have provided of your vehicle’s starting trouble and throttle surge, it looks like you have already tried replacing many parts on the car.Replacing parts without a diagnosis can be expensive and time consuming without a resolution.

It could be the intermittent no start and surge could be caused by a faulty fuel pump relay. It could also be an intermittent crankshaft position sensor, throttle position sensor, camshaft position sensor, powertrain control module, etc.

Assuming, the service engine soon/Check Engine Light is not coming on, this leads me to believe the computer is not recognizing the fault. Monitoring the computer parameters may help with diagnosis. Considering all the possibilities, I recommend having your vehicle’s intermittent starting issues diagnosed and repaired by a certified technician, such as one from YourMechanic, so that this can be repaired properly.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  • Home
  • Questions
  • Intermittent starting issues (takes a couple of cranks to start) & throttle surge

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: All my warning indicator's are on and the car won't start 2008 Chevrolet Malibu

Hi there - the security system is intentionally invoked after a battery replacement. Turn the ignition key to the "On/Run" position, and leave it for 10-15 minutes in this position. The security light will go out, then you can start...

Q: Truck over heating

It is possible to have a partial blockage in the radiator or air in the cooling system. Make sure that the fan shroud is fully attached with no gaps. It helps the system cool by forcing air to be pulled...

Q: My car won't start

Hello Joseph! From what you've stated, this could be one of two issues: a faulty starter or an issue with your aftermarket security system. Generally, if you hear a single click from the starter and knocking on it with a...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...