how to find leak

200,000 MILES
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TANNERS_421
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1996 quest van gets hot idling has leak put can't find it have to keep puting antifreeze in it. afrad to run it now.
Oct 4, 2011 at 10:24 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,244 POSTS
You can pressure test the system. Most parts stores will lend you a hand held pump to pressurize the system. It just goes on at the radiator cap. If that doesn't help, they make a dye to add to the coolant. After driving, check for leaks using a black light and the dye will glow.
Oct 4, 2011 at 10:26 AM
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