Q: Car idles when I slow down

asked by on

I purchased a diagnostic for this, but my mechanic didn't even test drive the car to see what was wrong. He basically checked my fluid levels and left. When I slow down at a stop sign or to turn my car completely shuts itself off. Ever since this started happening I've been hearing a loud "clanking" from inside the engine. I want to know what's wrong so I can just get someone to come out and fix it since apparently diagnostics are useless. EDIT: I just found the "media" section of the report and he mentioned that the sound could be a cam bearing or a "something" chain (couldn't hear the audio). Does anyone know what that chain might be and if replacing either of these will fix my problem? And would Yourmechanic fix these problems?

Hello. There are 6 possible engine sizes you may have and it would help to know the size to help with the diagnosis. The chain is the timing chain the technician was speaking of. The camshaft bearings would require the engine oil pan removal to replace the bearings. If the cam bearings are bad then the crankshaft and rod bearings may be bad also. I would suggest the engine rebuilt or the engine replaced with a rebuilt one. You can also call and talk to the technician that checked you vehicle to get details of the problems found. The technician did not drive the vehicle due to the engine noise he heard did not require one to diagnose the noise. Call to get details.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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. Car idles when I slow down

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: Engine swap

Hi there. Thanks for writing in today. Ask any professional custom hot rodder and they'll tell you that anything can fit - with fabrication. However, unfortunately, we typically focus on providing OEM repairs and maintenance tips on YourMechanic.com, so this...

Q: 07 Cobalt ignition was replaced on a recall. Now it won't start.

The very first thing to do is ensure that you have a usable battery. The battery should be fully charged and then load tested. If the battery passes a load test be sure it is NOT a marginal pass in...

Q: One of my engine mounts crack and my mechanic suggests I replace all of them front rear and side. I look up the parts is the side

I suggest you verify with the mechanic since they may be referencing the motor mounts front and rear but they are also called transaxle mounts when parts are looked up. The engine has one main mount in front of motor...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...