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Blown head gaskets are one of the most frequent causes of misfiring in adjoining cylinders....do a compression check; check for oil in your coolant and/or coolant in your oil.
But, it could be a number of other things as well.
(Not necessarily in declining order of likelihood..... )
1. Burnt Valves (as above, do a compression check)
2. Old, worn out, shorting out distributor wiring harness (replace it anyway if it's old)
3. Starving for fuel (check fuel pump/filter)
See your friendly, local mechanic!
Good luck.
What else can I help you with?
1999 ford contour se misfires and the cause?
You have bad spark plugs and or cap and rotor
What would cause No compression in 1999 Chevy Suburban 5.7?
Burned or bent intake or exhaust valve. Valves adjusted to tight, Burned pistion. Head gasket blowed between 2 cylinders.
How are a 1999 Chevy Suburban cylinders numbered?
Copy & paste into your browser: http://autorepair.about.com/library/firing_orders/bl-fo-3707.htm
Where is fourth cylinder on 1999 Chevy 350?
Drivers side head from front to rear are cylinders 1-3-5-7The other head front to rear are cylinders 2-4-6-8
What would cause multiple misfires on a 1999 Honda CR-V 4 cylinder?
POSSIBILITIES: Faulty spark plug - faulty ignition wire - distributor rotor needs replacing - distributor needs replacing. The most common cause of multiple misfires on the B20 / P75 engine used in the 1999 CRV is valve recession. this is a well documented problem on these engines. Repair usually requires replacement of the head.
How do you fix water in the oil pan on a 1999 Chevy Tahoe?
Do a compression check on all cylinders if its realy low on one or more cylinders chances are you got a blown head gasket ( replace ) are you loosing antifreeze fluid its in your oil ?
What can cause your 1999 civic Si to cut off while riding down the road?
Your cylinders could be backfiring on you. Bring it on to a mechanic. You could also have problems with your computer. But with a civic my guess is the cylinders.
What would cause the serpentine belt on a 1999 Chevy Malibu to melt?
frozen pulley
Why is my 1999 Chevy Blazer misfiring?
The Vortec Engines with the Spyder, or octopus type fuel injectors had issues with the clip on the fuel injector harness breaking. thus, causing it to come loose which would cause random misfires. also causes could be low compression, bad plugs and wires, dirty injectors, cattilytic converters.
What would cause water to get in all 6 cylinders in a 1999 88 royal 3.8l v6?
A blown head gasket, or a cracked block.
What would cause a 1999 Saturn sl1 excessive oil consumption?
Bad oil rings. Do a Murder Mystery Oil Soak on the cylinders
Trading in a 1999 Chevy with 80k miles?
When trading in a 1999 Chevy, the value can be lowered by several factors. Faded paint, torn interior, and any engine problems can all cause the price to lower.
