Q: Somewhat over heating. White greyish smoke coming out of exhaust. No heat

asked by on

I recently ran into an issue temp gauge and heat not working. Temp gauge who bounce around more than normal and mt heat was vey good. I was driving to work the other dayband hear a loud pop. I stopped the car and check my hoses belt tires ect and everything looked fine. Still having problems i went a head and replaced the thermostat and water pump. Now im having an issue with the car trying to run hot but the thermostat will bring temp back down to half. But i have white/greyish smoke coming out of the exhaust and still no heat. When the car is in park and idling the temp runs fine with no heat. When i drive it the temp gauge with almost hot the "H" but them come right back down. Also once the car has warmed up the "smoke" im seeing pretty much goes away

My car has 142000 miles.
My car has an automatic transmission.

Hi there. From the description you have provided, leads me to believe, there may be air trapped in the cooling system. Bleeding the cooling system can be difficult. A cooling system flush could resolve this issue. The white-greyish smoke cold, may just be condensation in the exhaust, being the smoke goes away engine warm. Continued driving with a low cooling system, could result in catastrophic and expensive repairs. I recommend having your vehicle’s erratic temperature gauge and white-greyish exhaust smoke be diagnosed and repaired by a certified technician, such as one from YourMechanic.

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
  1. Home
  2. Questions
  3. Somewhat over heating. White greyish smoke coming out of exhaust. No heat

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: Knocking Sound Run Roughly Dark Transmission Fluid and Dark Engine Oil

I am not sure how many miles your transmission has on it. I would say replace the transmission fluid but if its been more that 150,000-200,000 miles you may have to have a rebuild done on your transmission if you...

Q: Cruise control broken

Hi. Cruise control systems only engage past about 35 mph, so make sure that is not the issue. Other issues that can sometimes interfere with the cruise control are brake lights that may be having connection issues. The system uses...

Q: After tune up, alternator ruined by oil leak

Hello. The issue you are having is likely a ground wire fault that keeps blowing the fuse. Fuses blow when there is too much current for The ground circuit to release. Electricity is energy. Energy can't be created or destroyed,...

Related articles

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...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...