Q: My truck shakes when I accelerate

asked by on

Okay so when ever I put my foot on the gas pedal every couple of seconds my truck will shake very quickly then stop for a couple of seconds then do it again, if I take my foot off the pedal it stops, I'm thinking something with the fuel pump but I'm not sure the truck it's self has 230,000 ish miles but the engine is from a 96 Tahoe sport that is still a 5.7 with around 1000 on the rebuild, thanks!!

My car has 200000 miles.
My car has an automatic transmission.

This may be related to a faulty throttle position sensor or potentially a dirty or failing mass air flow sensor. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed with fuel prior to being injected into the motor. When this is dirty or faulty, this causes an imbalanced air/fuel load to be supplied to the motor which results in an over fueling or under fueling situation depending on the conditions. This type of inconsistent fuel supply to the motor may cause a hesitation, loss of power, a jerking reaction, potentially a bit of black exhaust smoke and typically a strong smell of fuel when this sensor is malfunctioning. When this is not working properly, you may also notice a strong smell of fuel. I would suggest having a professional from Your Mechanic come to your home to diagnose your mass air flow sensor.

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 shakes when I accelerate

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: My car wont start. I try to start it and it does nothing. The starter has been replaced.

Hi there. It sounds like a possible fuse/relay, battery, or wire harness fault. Check all fuses/relays and replace as necessary. Perform a test on the battery with a digital battery tester that provides cold cranking amps and state of health....

Q: Q: Stalling issue

Hi again Nick. Thanks for the second question. If you didn't get our first reply, here is what we suggested. It’s quite possible that the root issue here is that your ECU is activating a "limp mode" - especially based...

Q: Problem with transmission linkage

The linkage for the gear selector is located inside the steering column. Over time, continuous usage of any mechanical part will cause wear and tear, and eventually failed components. An inspection of your transmission should be carried out by a...

Related articles

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...
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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...