Why does my Silverado hesitate when I accelerate?
A vehicle that hesitates while accelerating or while driving up a hill may have a weak fuel pump. Fuel injectors may become dirty over time and not be able to provide as much fuel to the cylinder as is needed. Dirty fuel injectors may cause the engine to run lean which will in turn, cause hesitation when accelerating.
What does a flashing check engine light mean on a Chevy?
A flashing light expresses that the problem is fair and if not taken care of rapidly may result in major damage to the vehicle. This blinking light usually indicates a severe engine misfire allowing unburned fuel to be dumped into the exhaust system. A bad, old or dirty spark plug can cause the engine to misfire.
Why is my Chevy truck losing power?
The main reasons why your Chevy truck might be losing power when accelerating are low engine compression, clogged fuel or air filter, faulty fuel pump, and so on.
How is engine hesitation diagnosed?
Diagnosing Engine Hesitation Start by checking the engine computer with a scan tool, for any fault codes. A code P0171 or P0174 (or both) indicate the engine is running lean. This means there is too much air and/or not enough fuel. Consequently, the air/fuel mixture is not being properly, enriched or is going lean.
What does it mean when your car jerks?
When your car jerks or stumbles upon acceleration, it usually means something is interfering with the proper distribution and transfer of power. Probably the most benign meaning is if you’re driving a manual transmission and simply haven’t gained the feel of shifting for your particular vehicle.
What’s the problem with the Chevy 305 engine?
The primary problem with the Chevrolet 305 engine is the narrow 3.736 bore, which results in insufficient airflow compared to a larger block.
How much does it cost to diagnose p0305 GMC engine code?
The cost to diagnose the P0305 GMC code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
What to do if your GM pick up has no start?
One of the most overlooked areas, when testing a hard to diagnose no-start, is the mechanical condition of your 4.3L, 5.0L, 5.7L GM pick up, van or SUV. Checking the engine mechanical condition means an engine compression test.
What makes a Chevy engine have a problem?
With a combination of the PCV valve the AFM and the valve cover design, you have the makings for a disaster. For vehicles with this issue, the problem can be traced the AFM pressure relief valve within the crankcase- or the PCV system.