Q: Low idle in gear way to low, why?

asked by on March 03, 2017

Replaced the carb no vacuum leaks, it idles fine it park, put it in gear and it seems like it wants to die, sometimes it does sometimes it doesnt.
My car has an automatic transmission.

Hi there. It is common for an engine idle to decrease when in gear, as the application of the flywheel and transmission creates an additional drag on the motor. If it drops 100 to 200 RPM, then it should be OK. If it drops more than 200 RPM, you might have to adjust the idle screw or might have an internal issue with the carburetor such as a float bowl that is not functioning correctly. It also depends on whether or not the carburetor you purchased is correctly sized for the intake manifold and engine for your C10. You might want to first call the manufacturer of the carburetor you purchased to seek their advice on this issue.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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

antifeeze to come out of the O2 sensor

Hello, thank you for writing in. When coolant leaks into the engine from a blown head gasket, cracked head, crank case, intake manifold, or simply dripping down the engine. If there is actual coolant dripping from the O2 sensor, and...

Loss of antifreeze at air intake

A common failure in your engine is the intake manifold and intake plenum gaskets. When this happens coolant will leak under where the throttle body is located. I would recommend having a certified mechanic, such as one from YourMechanic, inspect...

Misfires, Rough idle, Engine Check light, and Engine not starting

Hello there, many different faults can cause your 2002 Chevrolet S10 to have starting issues, misfires and lack of power. The first step would be to scan the truck to determine what codes are present, this will determine what route...

Related articles

The Best Used Cars to Buy If You Love Camping
Do Do you love camping, getting back to nature and enjoying life in the great outdoors? If you do, then you know that getting there can be half the fun, and it’s even better if you have a great ride....
The Best Used Cars to Buy If You Just Retired
Here’s Here’s a cruel, hard fact – car manufacturers no longer target seniors. Instead, they devote their time and energy to appealing to the 18-45 demographic. Still, some features make certain cars more suitable for older drivers. We have...
How to Download a Chevy Owner’s Manual
When you buy a new car, you’re provided with original documents and books related to your vehicle. The materials you receive include: Your audio system operating information Your owner’s manual Your recommended maintenance schedule These manuals help...