Q: 2001 impala white smoke misifre and gas smell.

asked by on

car had intake gaskets replaced. put back together. lacking a couple bolts in the upper intake and throttle body. also has broken vacuum hose for the fuel pressure regulator and the canister purge valve. now it runs rough puffs smoke that smells like gas and i have to apply the gas to keep it running. what can cause this?
My car has an automatic transmission.

You already listed many causes of the problem with broken bolts and vacuum lines and fuel pressure vacuum line causing vacuum leaks and high fuel pressure at lower engine speeds. I suggest repairing all the problems you have listed when doing the work and then reevaluate the running of the engine. You may be running rich and or have coolant getting into engine.

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. 2001 impala white smoke misifre and gas smell.

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: Shaking when gas pedal pressed

Hello there, it is not uncommon to have variations in higher mileage vehicles though they should not be this bad. A violent shaking would indicate a fault. The most common causes would be spark plugs and wires, fuel pressure issues,...

Q: I changed fuel pump and truck ran great for 3 days. Now after 3 days truck dies. It will start runs few min then dies like before

Check the bottom of the fuel tank for sediment. Age and mileage could have accumulated a lot of it at the bottom of the tank. If you did not, check and change the fuel filter. Rule of thumb - replace...

Q: Can it hurt my car if i drive it with the battery saver active light on?

Hi There, The battery saver active light indicates that the system has detected that the battery charge is low, which generally means either the battery itself is weak or that the charging system is not properly charging the battery and...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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...