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This is a 1993 f150 with the 5.0 motor. My question is, what is that hole and is it supposed to be open like that? When it's started, smoke comes out of the hole really bad. Is it a freeze plug or wha

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  • 88 Answers

Its for a pcv valve. There should be a hose that would connect to the pcv valve. Or its for a breather. Either way its nothing to get freaked out about.

Posted on Jan 19, 2013

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6ya6ya
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Posted on Jan 02, 2017

ghassun
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SOURCE: really bad blue smoke coming from exhaust smells really bad

it's burning oil the problem is either a burnt valve or piston rings

Posted on Jun 08, 2009

  • 507 Answers

SOURCE: i have a really bad

clean the engine with degreaser (cover electrical stuff..alt any obvious plugs etc,)hose it clean,let it dry and run it,take to someone who knows what to look for,..even smart buddy,smoke could be several things,even worn engine

Posted on Oct 23, 2009

  • 191 Answers

SOURCE: 1984 300zx motor started smoking badly. White

sounds like a blown head gasket or if it is all coming from under the hood check all of the cooling system hose connections and look for any coolant leaks especially around where it could get on to the exhaust.If all of it is coming out of the exhaust the check the oil for signs of coolant getting into the oil,the oil will look milky white or a slimy greenish color and have a sweet kind of smell to it and if this is the case you have a blown head gasket and if it over heated it could have a warped or cracked head.sorry

Posted on Jan 02, 2010

  • 1 Answer

SOURCE: my pathfinder started jerking really

check your spark plugs, injector nozzles, fuel pump and the type of fuel in your car.

Posted on Feb 22, 2011

  • 14036 Answers

SOURCE: I have a 1993 chevy

200000 MILES ON ENGINE COULD BE LOW COMPRESSION CYLINDERS OR INTAKE LEAKS. BUT FIRST.IF SPARK PLUGS AND WIRES OKAY.REPLACE FUEL FILTER AND CLEAN FUEL INJECTORS.CHECK FUEL PRESSURE SHOULD BE 41 - 47 PSI.

Posted on Mar 18, 2011

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Wouldn't that be something your familiar with,
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First step would be to do a compression check on the motor.

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