Q: Barely idles, shakes, shuddering when accelerating

asked by on

I drove my 85 Chevy S10 Blazer from Washington to Montana and since my arrival my car has progressively run worse. It has gotten to the point where I have to floor the gas pedal to get the car to turn over and hold the pedal halfway down to get it to idle at all. When driving the engine seems to shudder when accelerating but smooths out once it shifts and when it's coasting. Air/fuel ratio hasn't been adjusted which needs to be done (4k altitude difference), but I am worried there is more wrong.

My car has 53000 miles.
My car has an automatic transmission.

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. Barely idles, shakes, shuddering when accelerating

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: Carburetor installation costs and adjustment.

Billing question sent to CS for installing and adjusting cost of a carburetor.

Q: Door locks go on and off fast, whole dashboard goes off, transmission seems out of gear, RPMs go up, wont start at times, switch on

Hey there. It sounds like you may have a major electrical issue with your vehicle. This could be a short of some kind or a computer going bad. I would recommend enlisting the assistance of a qualified professional who is...

Q: Vacuum diagram

The vacuum diagram is in a .jpeg or .pdf format and cannot be attached to this response. Please note that the complete Factory Service Manual (FSM) for your vehicle, including the vacuum and wiring diagrams, is available on Ebay at...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...