Skip the auto shop - Our mechanics make house calls

Q: Sudden RPM drop - 1996 Chevrolet C2500 Suburban

asked by on

When I'm driving at around 50 mph and let go off the gas pedal, the speed remains the same. Then I have to apply the brake and at that point, the RPM would drop as if the vehicle is idling. What might be causing this?

Hello. This is usually caused by a failing throttle body. Over time the throttle plate will wear into the throttle body bore causing it to hang up and not release as it should. I usually check the throttle body for this wear. If it is fine, then it can be the throttle cable binding. If you want to have this looked at, consider YourMechanic, as a certified mechanic can come to your home or office to inspect the systems and perform the necessary repairs.

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. Sudden RPM drop - 1996 Chevrolet C2500 Suburban

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: CAT got clogged, backfire and nowturns over but no start and gas smell

In most cases, the 'bang' you hear is an explosion of excessive carbon inside the cat itself and more often than not stays contained inside the catalytic converter or expelled out the muffler tail pipe. In some cases however, it...

Q: Pass key fault light continually blinks

A few different parts can cause this problem. The ignition switch or key cylinder are most likely. Another possible cause is the security module. In any of these cases, hot wiring the car is not recommended as it can cause...

Q: Car coughs while driving.....sometimes.

Hi there. There are multiple potential causes of your engine's "cough". The engine that powers your 2007 Honda City has multiple sensors that help the fuel system burn fuel efficiently. Since your fuel efficiency mileage is also suffering, my...

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...
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.