Q: Rough idle at start feels like beginnings of really bad problems and losing coolant

asked by on

From the very beginning it all started with my serpentine belt popping what happened was I had a bad harmonic balancer didn't notice it right away replace the belt again only the next time but it popped it actually got a little hot not completely butt I found out and change the harmonic balancer replace the belt ended up having to replace the battery was fine for a month or so then I did a coolant flush because the radiator was full of crud almost like mud and then I noticed I had a leak in it so i replaced it bled the air best as I could oh and changed the thermostat with a cheaper failsafe one but my car runs almost twice as much as it used to and still seems like its way to hot. Now on a cold start and seeming to get worse as I drive it everyday (no choice) it's got a rough idle until I accelerate like almost as bad as a bad maf and I have a two codes that come up oil pressure sensor circuit and bank 1 lean I'm not a beginner parts changer but I'm not an ace either ..yet ty all

My car has 105000 miles.
My car has an automatic transmission.

Hey there:

It appears you’ve got your hands full of some potentially serious issues on your Impala. The first thing I’d do is check your oil. If you’ve got milky oil; odds are that you’ve got a serious engine issue like a blown head gasket and might be better off to sell this car and buy a new one. However, because you’ve made a lot of repairs already, the best way to reduce your struggles and expenses is to have one of our professional mechanics complete an engine is leaking coolant inspection first. This very affordable inspection will allow them to inspect your 2003 Chevy Impala and determine why those error codes are appearing and why the vehicle is losing coolant in the first place. Good luck.

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. Rough idle at start feels like beginnings of really bad problems and losing coolant

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 caught on fire.

Hi there. From the description you have provided, I'm unsure as to exactly what your question is. Numerous things can cause an under hood fire. Fluids (engine oil, power steering fluid, brake fluid, transmission fluid, gasoline) leaking onto the exhaust....

Q: Got gas in my oil

If you are getting fuel into the oil then you either have a leaking injector or fuel pressure regulator. I recommend having fuel pressure checked and check the pressure regulator vacuum line to see if fuel is getting in it...

Q: Car keeps trying to start itself.

A faulted relay can be the cause of your problems. Corrosion may build up inside of the relay causing the circuit that commands the starter to close and activate the component. This corrosion can be cause by moisture making it's...

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...
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...