Q: My 2003 VW Jetta keeps starting to run hot when I exceed 65mph but then cools down the second I slow down to 60.

asked by on December 27, 2017

My 2003 VW Jetta keeps starting to run hot when I exceed 65mph but then cools down the second I slow down to 60. What could be causing this?

My car has 155000 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

Oil pressure sensor flashing
First, you need to check the engine oil level. If it is low, top it off to the specified amount on the dipstick. If the level is normal, you may have a bad pressure switch that is simply not reading...
did not pass smog test. obd catalyst, oxy snsr heat not complete.
Hi there. If your Check Engine Light is not illuminated, there is not a fault with the system. Before a vehicle can pass emissions testing, certain readiness monitors must be completed. One of which is the heater O2 monitor. The...
Car has trouble starting when it's cold
You may have an issue with your battery (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-battery). Batteries are measured in cold cranking amps which is the amount of amperage the battery can produce at 0 degrees. If the cold cranking amps of your battery are not up...
Head Gasket
Hello. Unfortunately, there is not really anyway to tell whether or not a genuine head gasket was replaced or sealer used. I would recommend having an expert from YourMechanic come to your home to take a look at the car...
Why is there a burning smell in the car when the heat or air is on?
Hello and thank you for your question. The smell you are having is a result of a dirty cabin air filter that needs to be replaced. The filter is under the dash behind the glove box. If you continue smelling...
Transmission or axle problem?
Hi there. Unfortunately, that sound you heard was most likely an internal component that has failed/broken. That doesn't mean that an axle failure couldn't be the source, either. This definitely needs to have an inspection to determine what has failed...
Car slowly lost power and wouldn't accelerate. Then when I pulled over and it started smoking and now it won't start.
Check the back of the engine by the firewall for any burned wires. It is possible that the harness to the engine has fallen down onto the exhaust manifold and is burning through. The wires may have shorted to the...
After putting gas in my 2006 Ford Explorer, my car started sputtering and my Emissions light came on. Help!
Hello, thank you for writing in. Several things may be effecting your fuel system. While all gasoline has certain regulations to uphold to, not all gas is created equal, and the classic "bad gas" situation does happen. Secondly if the...
My car won't start even with a new battery
It is possible that maybe the connections on the battery terminal ends are not tight enough or secured properly. I would recommend getting a wrench or socket to try and tighten up the battery terminal ends to ensure a good...

Related articles

A Buyer’s Guide to the 2012 Volkswagen Routan
For For those who need a vehicle that focuses on people-moving and little else, the 2012 Volkswagen Routan just might hit the mark. With improved fuel economy and responsiveness compared to the Chrysler platform on which it is based, this...
A Buyer’s Guide to the 2012 Volkswagen Touareg Hybrid
Whether Whether you’re new to the hybrid wave or an old hat, the 2012 Volkswagen Touareg Hybrid gives you exactly what you’re looking for – a comfortable, luxurious ride that provides decent fuel economy. Key Features This hybrid option from...
Understanding the Volkswagen Oil Monitoring System and Lights
Car symbols, or dashboard lights, are a car service reminder. The Volkswagen oil monitoring system indicates when and what service your car needs.