Q: Timing cover and coolant leak questions

asked by on

4 months ago I had a hose leak and got it fixed at a Nissan dealership then some months go by and I had my oil changed and the mechanic commented on smelling coolant at the same Nissan dealership but no one bothered to check any further, then a few more months go by and my check engine light comes on and I bring it back to the same dealership and they said my timing cover is bad needs to be replaced and it will be about $4,000 but they said it wasn't so bad that I couldn't drive it for a while and they cleared the code, so I brought it into a different Nissan dealership and at that dealership I find out that the hose that the original dealership fixed back in early summer never was clamped so coolant had been slowly leaking wherever in my car and I never noticed it on the ground so I'm guessing it must have been leaking into the engine or something. So my question is could the coolant leak have caused my timing cover to go bad?

My car has 119000 miles.
My car has an automatic transmission.

Hello and thank you for contacting Your Mechanic. Having a coolant leak will not damage a timing cover, however, having an engine overheat will cause a timing cover to warp or crack if the coolant was to spray on it. It’s like having a hot cup and putting cold water in it, it cracks. Look at the timing cover for any cracks, leaks around the timing cover, or the front engine seal for any leakage of oil. If your issues with the check engine light recurs, consider a YourMechanic certified technician come to your location for a check engine light is on inspection. Alternately, if you inspect the timing cover and find it to be damaged, a YourMechanic certified technician can also perform a timing cover replacement on your vehicle for you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
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. Timing cover and coolant leak questions

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: Media Center does not work in my car. How much does it cost to replace the unit?

Billing question sent to CS for the cost to replace the media system - the radio, Bluetooth, and no sound issue.

Q: Brake system lights on

Hello - given your attempts at replacing the common ABS/TCS failure components (wheel speed sensors), most likely the diagnosis of a failed ABS controller module is correct. Given the expense of replacing the controller, or of having yours rebuilt -...

Q: Throttle body codes. Car wont accelerate.

The throttle control actuator (and related relay that provides power to this) is a module that controls the opening and closing of the throttle plate which is what allows air and fuel into the engine. When this is not working...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.