Q: P0116 Code. Engine Temperature is high. Do I have air in my system? Water Pump issues?

asked by on

I just replaced my thermostat and Temp Control Sensor for my Saab 9-3 2004 Linear. I also flushed my system and replaced with new fluid. Engine light still on (p0116 code) Before repair I was getting no hot air in cabin and eng Temp was not getting off of L. Now eng temp is between a 1/4 and 1/2 on gauge and hot air is back. Also top hose to radiator is not getting hot after running. Hoses into heater core are hot. I believe it is a pressurized coolant system because everything goes thru the reservoir. I am seeing no leaks. Reservoir level constant. What could be the problem. Do I have air in my system? Water Pump issues? ( but engine is not overheating before/after repair). I just put the Temp Control Sensor in last night and ran the car awhile but engine light still on. Do I need to road test it to get engine temp up for Sensor to kick in? Are there any additional sensors/fuses I need to check related to this? I could not locate any. Thx

My car has 99000 miles.
My car has an automatic transmission.

Hi there. Check the thermostat by watching the coolant temperature gauge. When the engine gets hot and the thermostat opens up, then needle moves down a little bit. If the needle does not move and the system seems to be getting hot faster than normal, then it is suspicious that the thermostat is stuck open. I recommend replacing the thermostat as it can fail at any time. If you need further assistance with your coolant getting hot too fast, then seek out a professional, such as one from Your Mechanic, to help you.

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. P0116 Code. Engine Temperature is high. Do I have air in my system? Water Pump issues?

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: My car hesitates when accelerating, specially uphill

Hello, thank you for writing in. One of the most common reasons for black smoke and a loss of power is a rich air-fuel mixture. With the check engine light on, have the vehicle scanned for diagnostic codes. This can...

Q: Where would I go to remove marks left by an egg

Hey there. I would recommend first taking the vehicle to or having a car detailer to look at the damage to see if it just needs a good cleaning and waxed or the damage requires the paint to be repaired...

Q: it has a misfire when at slow speed

An ignition system problem is one of the most common reasons for an engine to misfire. As the spark plugs, ignition cables, distributor cap and rotor, and ignition coil wear over time, their ability to transfer the needed spark to...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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.