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

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.

Mike and Mike's Complete Auto Care
(205) 378-9997
151 Corporate Way
Pelham, AL
Industrial Diesel Hydraulics
(205) 251-0195
209 20th Street South
Birmingham, AL
Alabama Trailer and Truck Parts
(205) 328-4210
3100 Richard Arrington Jr Boulevard North
Birmingham, AL
Birmingham Auto Clean
(205) 323-4358
931 7th Ave N
Birmingham, AL
Autozone
(205) 788-8310
724 3rd Ave W
Birmingham, AL
Auto and Truck Services Inc
(205) 252-9300
100 25th Street South
Birmingham, AL
Drive Today USA
(205) 739-1813
700 8th St S
Birmingham, AL
Kurts Truck and Parts CO
(205) 324-2453
728 31st Street North
Birmingham, AL
Napa Auto Parts
(205) 251-6272
2521 Finley Blvd
Birmingham, AL
Midas Homewood
205-942-4489
436 Green Springs Highway
Homewood, AL
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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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