2001 Volkswagen Jetta Coolant Loss

VOLKSWAGEN

J G

MEMBER
1 POST

I have a 2001 jetta TDI. It seems to be losing a small amount of coolant noticed by the lower level in the coolant tank. I also have a 2005 Jetta which had the same symptoms and had a faulty EGR cooler that was replaced under warranty. I want to troubleshoot my 2001 before I seek repair and want to pressure check the coolant system to see if it holds pressure or has a leak. How much pressure should I use to check the system for leaks? I don't want to use too much pressure and cause damage to the system. Thanks...

Jerry

Jan 28, 2007 at 6:41 AM

2CARPRO JACK

✓Experienced Mechanic
11,533 POSTS

You shouldnt have to go much higher than 13- 15 lbs.If its a colant loss problem, inspect the front of the engine underneath the water pump. Sometimes they only leak when engine is running

Jan 28, 2007 at 11:19 PM

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Suggested Repair

Pressure-test the cooling system at no more than 13-15 psi. If coolant is being lost, inspect the front of the engine under the water pump, which may leak only while the engine is running.

Conversation Summary

The owner of a 2001 Volkswagen Jetta TDI noticed a small coolant loss and asked what pressure to use for a leak check without damaging the system. A 2005 Jetta with similar symptoms had a faulty EGR cooler, but that was not diagnosed here. The expert advised testing at about 13-15 psi and inspecting beneath the water pump at the front of the engine, noting that some leaks appear only while running.

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2001 Volkswagen Jetta Coolant Loss

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