Q: Idle fluctuates when heater is turned on in my 2002 ford taurus. Car won't start after stopping when operating temperature

asked by on June 28, 2017

My engine light stays on, after turning off car won't start when operating temperature is reached. Idle fluctuates when heater is turned on

My car has 120000 miles.
My car has an automatic transmission.

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Gears will not engage.
If your vehicle is a standard (manual) the shifter linkage is likely broken. There is a rod that engages 1-2 gears and often breaks. If you have an automatic trans, you could have internal transmission failure. A qualified technician such...
Steering wheel shaking
Hi there. It sounds to me that you have warped brake rotors. This problem occurs when your brakes heat up to a point where the pressure exerted from the tightened lug nuts bend your rotors. When you press your brakes,...
Central locking is no longer working.
It sounds like your vehicle has a problem with the body control module, mainly because you said the power locks are also inoperative from the door panel. The first thing I would suggest is to check the fuses (https://www.yourmechanic.com/article/how-to-check-fuses-by-rocco-lovetere), then...
Eco light in dash
The most common problem with these vehicles I have seen with the Eco Light flashing is a problem with the transmission solenoids (https://www.yourmechanic.com/services/shifter-interlock-solenoid-replacement). The transmission will need to be scanned to see if which solenoid is having problems in the...
Thumping noise and vibration at lower speeds
Hello there, with the 2002 CL500 and many other older vehicles it is not uncommon to develop vibration issues. The most common causes would be a damaged rim, out-of-balance tire, failed strut (https://www.yourmechanic.com/services/strut-assembly-replacement) or shock (https://www.yourmechanic.com/services/shock-absorber-replacement), or another failed suspension...
Water damage to electrical components after a flood. Is there anyway for the electrical to be tested?
Many times when a vehicle has been involved in a flood, it is typically considered to be totaled. There are so many electrical systems in newer automobiles that it would be very tough to test everything for water damage. I...
Timing chain problem?
It could very well be a timing chain problem (https://www.yourmechanic.com/services/timing-chain-replacement). The P0016 and 17 indicate that the camshaft sensors (https://www.yourmechanic.com/services/camshaft-position-sensor-replacement) are sensing the camshaft in a position that does not logically correspond with the crankshaft. The P0302 (https://www.yourmechanic.com/article/p0302-obd-ii-trouble-code-cylinder-2-misfire-detected-by-jamahl-walker) and P0355...
Where is my coolant leaking from? 2007 Dodge Caravan
Hello - you may have a coolant leak (https://www.yourmechanic.com/question/water-pump-might-be-bad-car-has-coolant-leak) from a worn out water pump. If so, this could result in an immediate failure, as modern water pumps have a remarkable ability to work right up until complete failure. The...
Slight vibration between 50-60 miles per hour.
Hello, thank you for writing in. The suspension and tires are so closely related that an issue with your tie rods would feel like a tire problem. The technician is correct about this would cause a vibration (https://www.yourmechanic.com/services/car-is-shaking-or-vibrating-inspection). Did they...

Related articles

A Buyer’s Guide to the 2012 Ford Fusion
Choosing Choosing a mid-size sedan for your family can be a tough call. There’s a lot of competition out there, including really popular models like the Honda Accord and Toyota Camry. Among all those, though, the 2012 Ford Fusion really...
A Buyer’s Guide to the 2012 Ford Escape Hybrid
Over Over the past few years, we’ve seen a major trend toward people choosing crossover utility vehicles (CUVs) over larger SUVs. The big motivator here, of course, is buying a more eco-friendly vehicle that will also save you a bundle...
A Buyer’s Guide to the 2012 Ford Expedition
The The 2012 Ford Expedition has ample room for passengers and cargo, while still being able to tow anywhere from 8,900 to 9,200 pounds. The Expedition has two-tone exterior packages making it stand out against its competitors. Along with that,...