Skip the auto shop - Our mechanics make house calls

Q: Truck shakes and wants to die in the morning

asked by on

When I start my truck in the morning, it wants to shake and die, but it never does. This happens for at least three minutes, and then it will run smooth for the rest of the day. I wonder if it is the throttle body?

Hello! Throttle body could very well have to do with the rough idling. It may be caused by carbon buildup on the throttle plate or throttle body runners. Throttle body carbon buildup is the most common cause of the rough idling when cold. However, the rough idling could also be caused by a faulty coolant temperature sensor, distributor, or flawed fuel pressure. I suggest having a mechanic inspect the throttle body, and clean it of any deposits if necessary. Also, the fuel pressure should be checked, the distributor inspected, and the coolant temperature sensor tested. YourMechanic can have a mobile mechanic sent to your vehicle’s location to inspect your rough idle condition, and conduct the tests mentioned above, if deemed necessary.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Truck shut off while going down a hill

A full diagnostic would be needed to identify the issue. A key to that effort will be reading the diagnostic trouble codes that have set the Check Engine Light on. With those codes and a few quick tests, it...

Q: When AC is on I hear a beeping noise

Hello. Small beeps when the AC is on can be caused by dirty or faulty AC components. A common source of a beeping or chirping sound when the AC is turned on is a dirty or faulty evaporator case. The...

Q: My truck overheated - is it a bad water pump or something else?

The [water pump]https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-water-pump) should definitely be evaluated. If you start the car cold, once engine temperature gauge reads in the normal range, check to see if radiator is hot. If radiator is cool and you have a new thermostat and...

Related articles

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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.