Q: White smoke, won't start, 1999 Jeep Cherokee

asked by on August 25, 2016

It won't start but cranks and there's There's white smoke coming out the intake what can cause that

Hi there, thanks for writing in about your 1999 Jeep Cherokee. You need to check to see if your engine has spark to the spark plugs. This could also be due to a bad crankshaft sensor. The smoke coming out of intake may be from excess fuel getting into the engine without ignition. Scan and monitor data to see if crank sensor is sending signals to the computer to give the engine spark to run. If you would like to have this looked at, a certified technician from YourMechanic can come to your car’s location to inspect the starting issue and assist with any needed repairs.

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

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

Why won't my 2010 Honda Civic start

Hello. If your Civic will not start all of a sudden then it can be caused by a number of things. Most of the time the issue is with the fuel pump or possibly a sensor issue. I usually install...

Leak and low oil pressure

This suggests that you may have a leaking oil pan gasket. This can happen for a number of reasons, but is usually common due to excessive heat which causes the gasket to shrink creating a leak in the gasket. This...

Car smoking and smelling

If the smoke coming from the tailpipe is white and has a sort of sweet smell, it is coolant getting into the exhaust system, due to one of the engine head gaskets being blown, and leaking coolant into one of...

Related articles

The Best Used Cars to Buy If You Live in a Cold Climate
If If you live in a cold climate, likely one of your biggest concerns when you are considering which used vehicle you should buy is how well it will perform in snowy, icy conditions. We have evaluated a number...
Symptoms of a Bad or Failing Starter
Common signs include the engine not turning over, starter engaging but not spinning the motor, and grinding noises or smoke when starting the motor.
The Most and Least Expensive Cars to Insure
Car insurance quotes depend on the car make and model. The Honda Odyssey is the least expensive and the Dodge Viper is the most expensive to insure.