Hose on engine

Tiny
ELIZABETH KING
  • MEMBER
  • 2001 LINCOLN LS
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 100,000 MILES
My husband connected some hoses wrong and we think coolant was sucked into the engine. What do we do now?
Saturday, December 16th, 2017 AT 2:33 PM

2 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
So coolant got into the oil? Or in where the spark plugs are?
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Saturday, December 16th, 2017 AT 11:05 PM
Tiny
CARADIODOC
  • MECHANIC
  • 33,752 POSTS
You have to be specific, but I have a hard time imagining how mixed up hoses can cause loss of coolant. Radiator hoses are about 2" in diameter. Heater hoses are 1" in diameter, and most rubber vacuum hoses are 1/4" in diameter and plastic vacuum hoses are half that size. Look for the emissions sticker under the hood. It will have a diagram on it showing the routing for the vacuum hoses. If you put a lot of effort into it so coolant got sucked into the intake manifold, which is where all the vacuum hoses originate, you would see a huge cloud of thick white smoke from the exhaust pipe. Burning coolant in the engine obviously is not desirable, but it should not cause immediate serious damage if it is corrected up right away. Antifreeze in the engine oil is a serious concern because it will melt the soft first layer of metal in the engine bearings. That will lead to catastrophic failure unless the oil is drained and replaced soon.

The hose going from the radiator to the coolant recovery reservoir, (expansion tank), is usually 1/2" in diameter, and so are some emissions hoses related to the charcoal canister. While they are the same size, their lengths and locations make them pretty difficult to mix up.

What problem or symptom led up to the need to work with the hoses? Do you think some hoses were mixed up but they're correct now? Why do you think coolant went somewhere?
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Saturday, December 16th, 2017 AT 11:07 PM

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