Skip the auto shop - Our mechanics make house calls

Q: Poor idling and low speed stalling 1993 GMC Sierra V8

asked by on

Idol jumps and drops when stoped and wants to stall when you give it gas to quick

Hi - your poor low-speed running symptoms cover a range of possible problems: fuel supply issues (low fuel pressure, clogged fuel filter, clogged/leaky injectors), idle air control valve, dirty throttle body or throttle position sensor. I recommend a poor engine performance by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for 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. Poor idling and low speed stalling 1993 GMC Sierra V8

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: I have a 1999 Mazda 626 and when my car is at a red light the car rumbles only with the A/C on. I want to know what the problem may be?

Hello. When the AC is on it puts more of a load on the engine. At idle the engine will have some trouble maintaining a smooth idle when the AC is on due to the extra load. Typically the computer...

Q: Car died while driving. Now the battery gauge stays at zero and the car won't start - 1996 Jeep Grand Cherokee

Hi there. There are a few things that could be wrong with your Jeep. First, it seems as if your battery might be dead; however, this may have been caused by the alternator being damaged, which fails to charge the...

Q: The durango runs very rough after a loud pop.

This can happen for many reasons, however usually a loud pop or backfire is a sign of a lean fuel condition or an ignition timing problem. A lean fuel condition can be caused by a faulty mass air flow sensor...

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...
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.