Skip the auto shop - Our mechanics make house calls

Q: Occasional shaking and sluggishness while accelerating

asked by on

The truck has some problems that happen after I start it up in the morning and increase the speed. If I stop at the traffic light, there is shaking and loss of engine power during acceleration. After that, the vehicle runs great and it could be days without any issues. This happens especially when the weather is damp or foggy. At the shop, they couldn't find what the cause is. Do you have any idea. I appreciate your help.

A: If your vehicle is shaking and losing power...

If your vehicle is shaking and losing power, the most likely cause is fuel or ignition system related. I would recommend having the fuel pressure checked by a qualified professional to determine whether or not the fuel pressure is within specification.

If the fuel pressure is low, this can be due to a weak fuel pump or clogged fuel filter and could also have an affect on your problem.

If the ignition system is having issues, this can be tested with an ignition tester to determine if spark is going to the places that it should. I would also recommend having this test done by a professional as it involves high voltages and injury from shock may result. It is very likely that the cause of your issue will be found during one of these two tests.

If you decide to get this fixed, contact a certified mechanic who can perform these two checks and fix your cars performance at your own convenience.

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: Loss torque on accelration

It sounds like you are experiencing a lean condition and engine pinging. The most common fault I have seen for this is when the mass air sensor causes the engine to go too lean. When you look at the scanner...

Q: How do I view the engine oil life in the multi-information display?

The engine oil life shows you how much remaining life your vehicle’s current batch of oil has. To view this feature, press the display button until the multi-information display above the center console shows the engine oil life. The multi-information...

Q: Window not going back up

The cause of your window not moving is either a faulty window motor, or faulty regulator. If you hear a noise when you try to move the window, then the regulator is broken. If you do not hear any noise,...

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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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...