Question about 2003 Hyundai Accent
The hyundai dealer will be the best solution as they have the vehicle data base
Posted on May 07, 2014
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Posted on Jan 02, 2017
Main causes of misfire would be loss of spark; the air/fuel mixture is too far out of balance to ignite; or loss of compression.
Loss of spark includes anything that prevents coil voltage from jumping the electrode gap at the end of the spark plug. Causes include worn, fouled or damaged spark plugs, bad wires or even a cracked distributor cap. A weak coil or excessive rotor gas inside a distributor would affect all cylinders, not just a single cylinder.
"Lean misfire" can occur when the air/fuel mixture is too lean (not enough gasoline in the mixture) to burn. This can be caused by a dirty, clogged or inoperative fuel injector; air leaks; or low fuel pressure because of a weak pump, restricted filter or leaky pressure regulator.
Loss of compression means the cylinder loses most of its air/fuel mixture before it can be ignited. The most likely causes here are a leaky (burned) exhaust valve or a blown head gasket. If two adjacent cylinders are misfiring, it's likely the head gasket between them has failed. Also, if an engine is overheating or losing coolant, it's likely the head gasket is the culprit.
You can isolate the weak cylinder by temporarily disconnecting each of the spark plug wires, one at a time, while the engine is idling. When there's no change in the idle speed, then you have pinpointed the weak cylinder.
Posted on Aug 25, 2009
Testimonial: "did the spark test found two plugs to be weak. what would be my next step. "
SOURCE: 2002 hyundai accent needs brakes
hi from uk to renew front disc(rotors) and brake pads on the accent are not beyond the mech minded diy er and can easilly be done if you follow instructions on the haynes manual etc and would save$$$$s in dealer charges ? if you diy as for the rear brakes they are drum brakes with shoes that are auto adjust but again can be done by diy with help of manual ? as for cost of parts ? you can obtain/price of all parts from good auto shop/superstore also a manual ? then by all means obtain a quote ? for local garage to do the brakes with cost of labour and parts ? then consider option of diy? i am sure you will be tempted/inspired if you browse the work involved hope this helps? contact again if you feel lucky? will be glad to assist if you get stuck? or req info ? merry xmas from uk
Posted on Dec 19, 2008
You have a vacuum leak. This means that you will need to go through all of the vacuum likes and make sure they are connected and not broken. If they are broken buy new vacuum line, its like less and $1 per foot. In your case if you can I would replace all of the vacuum lines if they look cracked and old.
Posted on Nov 18, 2010
Code 0734 : Gear 4 Incorrect Ratio. you may wanna take back to the Mechanic and tell him whats going on and let him deal with that. Good luck
Posted on Dec 12, 2010
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