Q: Car overheats; P1491 engine code

asked by on

The car keeps overheating. Also, there is a P1491 engine code.

The code you received says it may be a problem with the cooling fan relay or circuit. This may be the cause of the overheating. Some owners had to just replace the cooling fan relay and others had a wiring issue with the fans. I recommend you have a mechanic like one from YourMechanic inspect your vehicle’s overheating issue to find out what needs to be fixed.

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. Car overheats; P1491 engine code

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: how many catalytic converters do it have

Your vehicle has two catalytic converters. These two converters are assembled, along with a muffler and some pipe, as one integral piece. The OEM Infiniti part number, if you require replacement of these converters, is 20020-CR91A. If you do a...

Q: Q: Water Pump

If the overheating problem was not resolved with the new radiator and thermostat then it is not safe to drive the car simply because overheating will damage the engine. If, however, the overheating problem was resolved with the installation of...

Q: Wiper speeds not consistent, and wiper failures

For your vehicle there is a recall for this problem, you should be able to get your faulty wiper module replaced. Contact your local dealer to check your vehicle identification number with them to perform this and any other recalls...

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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.