Skip the auto shop - Our mechanics make house calls

Q: Choke doesn't release and engine idels up and down and makes clicking noise

asked by on

Choke doesn't release and engine idels up and down and makes clicking noise

My car has 140000 miles.
My car has an automatic transmission.

A: Hi there. Your Mazda truck doesn’t have a c...

Hi there. Your Mazda truck doesn’t have a choke, as it is a fuel injection system made by Ford. If your engine is idling up and down then you may have a vacuum leak in the intake or hoses to the intake. Its possible the intake gasket seals or the EGR tube O-ring are leaking, causing the engine idle to not be rough and surge up and down. You can use a rubber hose held up to your ear like a stethoscope. Listen around the intake for the vacuum leak, and that will help you isolate where the leak is coming from. Also check the brake booster vacuum hose for leaks. If you need help with this then I suggest contacting a professional technician, like one from YourMechanic, to diagnose your idle issue.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Car stuck in second gear

Hello. If the transmission is stuck in second and if the shifter has little to no resistance when moving it then the shifter cable may have broke. I have come across this a few times. I would typically locate where...

Q: The car starts but will stall shortly after, it also will ideal rough and at times not start at all. 1994 Chrysler LeBaron

Hi there - I suspect the fuel pump relay is failing, not conducting much current to the fuel pump. It is mounted on the engine side of the firewall in front of the driver position. For assistance in diagnosing this...

Q: Change electrical shift solenoid A p0753

This may be a sign of low transmission fluid or a faulty transmission control solenoid. As you know, automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is required, the car's computer activates a transmission...

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...
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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...