Q: Engine coolant leak - 2000 GMC Savana 3500

asked by on

Glycol leak coming from shield pan that covers large gear of transmission behind oil pan and filter. Oil looks good and oil level. Transmission fluid also good. No transmission fluid in radiator. Top of engine dry no leaking hoses. Just changed oil and oil filter, air filter. Any ideas where it could be coming from? Thank you

My car has 150000 miles.
My car has an automatic transmission.

Hi and thanks for contacting YourMechanic. Looks like the coolant is coming from the rear freeze plug on the back of the engine. For this issue, I would recommend putting coolant dye in the cooling system and run the engine for a couple of hours, then check for coolant leaks with a black light and yellow glasses. This will make the coolant stand out really bright and you will be able to see exactly where it is leaking from.

If you need further assistance diagnosing your vehicle, then seek out a professional, such as one from YourMechanic, to help you with pinpointing your coolant leak.

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. Engine coolant leak - 2000 GMC Savana 3500

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: Interior lights are on, but car won't start

It sounds like you may have a bad starter. Some times starters will go bad intermittently. This is often due to a loose connection of some sort that causes the voltage to be lost in the path from the battery...

Q: I felt a jolt while driving - could it be a transmission issue?

Hi. This is a good indication that the transmission has overheated and damaged a lot of the internal parts of the transmission. This could have been caused by low transmission fluid or extremely dirty transmission fluid causing a cloth in...

Q: No power to the fuel pump and the fuel relay is not getting power.

Hello. If you there is no power to the fuel pump or the relay, then there may be a possible electrical issue with the vehicle. I would first verify that the main EFI, fuel pump, and ignition fuses are not...

Related articles

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 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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.