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

The is the sound and feel of a "clunk" when putting the car into the drive gear and when coming to a complete stop.

The pop or clunk is the transmission shifting into first gear. If you look at this complaint on the Jeep Forums you will find many different opinions of what it may be and what fixed their vehicle. The first thing...

Blower motor not working

If your heater only blows when the setting is on high, this may suggest that you have a faulty blower motor resistor. The highest speed setting may still work because in most cars in the highest fan speed settings the...

When car starts, it shudders before shutting off

A clogged fuel filter can cause stalling issues on a vehicle. The clogged fuel filter makes the fuel pump work harder to deliver fuel to the engine and can overheat the fuel pump. The fuel level sending unit is in...

Related articles

How to Inspect Valve Clearance Adjustment
The The term “valve adjustment” is an oxymoron. What is actually being adjusted is the clearance between the linkage of the camshaft and the valve. It is most often called the valve lash. This system that links the camshaft to...
2012 Jeep Grand Cherokee vs. 2012 Dodge Durango: Which One Should I Buy?
Medium to large SUVs are a fun class of vehicles: plenty large enough for moving people around, but if you really want to get out there in the mud and have some fun, they are still good for that type...
The Best Used Cars to Buy That Can Be Towed Behind an RV
Summer Summer is a great time for a road trip, but often travelers like bringing all the conveniences of home along, in the form of an RV. Then they tow their car behind it – sometimes this practice is called...