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Tech Tip: How Can You Tell if a Head Gasket is Leaking or Has Failed? Columbus OH

Depending on the application and how much labor it requires, the repair bill might run $1,500 or more for parts and labor. The parts required to replace a head gasket include not only the head gasket itself, but also all the other gaskets that have to be replaced to disassemble the top of the engine.

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(614) 547-2745
999 Worthington Woods Loop Rd
Worthington, OH
AutoZone
(614) 298-9339
631 E. Fifth Ave
Columbus, OH
Carquest Auto Parts Super Store
(614) 267-6321
2825 Silver Dr
Columbus, OH
Napa Auto Parts
(614) 224-0007
162 N 6th St
Columbus, OH
Carquest Simplex Motor Parts
(614) 232-0450
395 E Mound St
Columbus, OH
Lucore Automotive
(614) 675-3312
7245 Industrial Parkway
Plain City, OH
Autozone
(614) 298-9339
631 E 5th Ave
Columbus, OH
Carquest Auto Parts
(614) 267-6321
2825 Silver Dr
Columbus, OH
AutoZone
(614) 258-7799
970 Livingston Ave.
Columbus, OH
Autozone
(614) 258-7799
970 E Livingston Ave
Columbus, OH
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Tech Tip: How Can You Tell if a Head Gasket is Leaking or Has Failed?

By Larry Carley   email
Technical Editor
November 10, 2009

The first symptoms of a head gasket that is failing are usually a slow loss of coolant with no visible leaks, engine overheating and/or a Check Engine light with cylinder misfire codes.

The first symptoms of a head gasket that is failing are usually a slow loss of coolant with no visible leaks, engine overheating and/or a Check Engine light with cylinder misfire codes.

The Onboard Diagnostic II system should detect any misfires that occur due to a loss of compression or spark plugs fouled by coolant seeping into a combustion chamber. So if a vehicle has a Check Engine light on and a cylinder misfire code, the spark plug in that cylinder should be removed and inspected for coolant fouling. A compression or leak down test should also be done to see if the cylinder is losing compression. Internal coolant leaks caused by a leaky head gasket can usually be diagnosed by pressure testing the cooling system.

Regardless of the cause, a head gasket failure is bad news for the vehicle owner.

Depending on the application and how much labor it requires, the repair bill might run $1,500 or more for parts and labor. The parts required to replace a head gasket include not only the head gasket itself, but also all the other gaskets that have to be replaced to disassemble the top of the engine. This includes the intake and exhaust manifold gaskets, too, plus new cylinder head bolts if the applicat...

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