Q: My temperature gauge goes up and down when driving. We just recently changed the thermostat. It even does it when the ac is off. I
The temperature gauge in my car goes up and down. We recently changed the thermostat so I'm at a loss. It even does it when the ac is off, not sure if that matters or not
My car has a manual transmission.
Recommended Services
| Car is running hotter than normal Inspection | $94.99 - $114.99 | Get a Quote |
Hi there. It is quite possible that the electrical harness to the thermostat is faulty or you have an obstruction of coolant inside the radiator or cooling system that is causing an actual temperature flux as you are describing. It would probably be a good idea to have a professional mechanic complete a car is running hotter than normal inspection at your location, to determine the source of this problem - so the right repairs can be made.
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
What others are asking
How do I wash the wheels on my truck?
Over time, the tires on your truck will become dirty. Cleaning the wheels regularly will ensure that they maintain their shine. To clean the wheels. Use Motorcraft Wheel and Tire Cleaner to clean the wheel. Remove tar and grease. Rinse...
Amount of A/C refrigerant required for my Hyundai Santa fe 2002 GLS
It should have a sticker under the hood stating the amount of R134a to be 1.35lbs or .6kg. You should put about 1 oz of A/C oil in the condenser and the compressor should have the amount it needs on...
rough shifting high idle
Hello. This can be caused by a few different things. Most of the time it is caused by the needs for a tune-up (https://www.yourmechanic.com/services/tune-up) or a fuel system problem. Both of these will cause the car to run this way....
My car shakes while it idles but says there is an evap system leak?
An evap leak is the same thing as a vacuum leak. A vacuum leak will certainly cause the engine to run roughly. I would recommend having your vacuum levels checked with a vacuum gauge by a qualified professional to determine...
Calipers keep locking up even after replacing.
You need to have the brake master cylinder checked to see if the brake booster actuator pin is not adjusted correct and causing the brake master cylinder to hold partial pressure to the calipers. The caliper slides should also be...
My car jerks when decelerating or cruising in slow speed.
Hey there. This may be a sign of a dirty or failing mass air flow sensor (https://www.yourmechanic.com/services/mass-airflow-sensor-replacement). The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed with fuel prior...
Start error on Mercedes
If you have another key, try to start it with that 2nd key. If it starts, then the DAS (Drive Authorization System) is good and only the 1st key has lost synchronization. Try this with the non-functioning key: Insert the...
My car battery is dying while it's parked. I replaced the battery and in just a week it died while sitting parked overnight.
Hi there. There could be a parasitic load on the battery causing it to drain overnight. To check this symptom perform the following: Remove the negative battery cable (-) Get a digital meter and put one lead on the negative...
Where is the starter located in a 2013 Chevy Sonic?
You will need to have the battery jump started to see if the rapid clicking is due to a low battery or a theft light staying on causing the no start. For the starter location you would need to submit...
Related articles
A Buyer’s Guide to the 2012 Honda Accord
The The 2012 Honda Accord has a lot to offer. From great fuel economy to comfortable features and a sleek, modern look, it’s no wonder so many people love the Accord. Though, unlike the Civic, Honda has yet to offer...
The Best Used Cars to Buy for College Students
You’ve You’ve done it – high school is officially behind you. Now it’s time to head off to a brand new world. College is that and more and you may need a car during your pursuit of a higher education....
The Best Used Cars to Buy to Maximize Resale Value
A A car is not an investment. An investment, by definition, increases in value. A car is a necessary purchase, and it will never appreciate in value, with the possible exception of classics and antiques. So, as a used car...
Browse other content
Estimates
Cities