Skip the auto shop - Our mechanics make house calls

Q: possible misfire or trans/torque converter problem

asked by on

Above 40 mph Between 1400 and 1800 rpm and I give a little bit of throttle to accelerate and I get what feels like a random misfire, at higher rpm it doesn't do this. Cleaned throttle body and installed new tps. No misfire codes are showing up on dash when I turn the key 3 times. Would a obd pick this up or could it be cam sensor or map sensor. P.s. This truck has no mas sensor. I don't think it's trans or torque converter no slipping and it moves without throttle.

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

Try driving the vehicle in regular drive or 3rd gear out of over drive and get to the same vehicle speed and see if the problem is gone. Then try driving to a speed where the engine speed is 1400 to 1800 RPMs and also see if problem is gone. Then put it back into overdrive on selector and repeat to see if problem comes back. If it does, then the problem is in the torque converter overdrive or solenoid that controls the shift to that gear. If you want to have this checked, a qualified pro from YourMechanic can come to your car’s location to inspect the possible misfire to have this corrected.

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
  1. Home
  2. Questions
  3. possible misfire or trans/torque converter problem

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: The car started stalling after the sparkplugs were repleced

A thorough inspection of the following engine components should be performed: all vacuum lines and electrical connections intake air tube to the throttle body check for any loose, leaking connections If the problem cannot be diagnosed,...

Q: Sugar in gas tank.

Hello. I am so sorry to hear that this has occurred, as it can be a very expensive repair. If the vehicle has not been ran since this occurred then the fuel tank needs to be removed and cleaned. If...

Q: My truck wont start. I was driving it earlier and a big cloud of white smoke came out of the exhaust and it completely shut off

Hello and thank you for contacting YourMechanic. White cloud of smoke from the exhaust means that the engine coolant has gotten into the combustion chambers of the engine and is burning the coolant. This could be caused by a blown...

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...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.