My car sounds like it is running harder or at higher rpm than normal just to shift, also have noticed the car misses when the rpm meter is not working. I have replaced all spark plugs and wires I'm at a loss here of what to do, nobody can seem to figure out the problem. I have a hyundai sonata 2000
I used to have a 1999 Mitsubishi Eclipse with the same symptoms; my mechanic replaced the speed sensor ($65) and the problem went away. Take the car to auto zone and ask them to plug the computer, they normally do it free of charge. If it is the sensor, you may have to buy at the dealer.
would the computer even tell anything the engine light hasn't come on
Yes, you're right. Now I remember that when I had the issue with my eclipse, the engine light never came on. If is the speed sensor, you will need to take it the mechanic. The sensor is not in an area that is easy to reach, and you should be looking to spend around $100.
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If vechicle speed sensor did not fix problem.missing problem could be caused by many things like clogged fuel filter,dirty fuel injectors,if bad ignition coil in which negative lead to ignition coil causes tachometer to work.your tachometer work from ignition coil your speedometer works from vechicle speed sensor. i am a old school and new school mechanics the older cars had hook tachometer at the distributor negative tach terminal.
SOURCE: change spark plugs 2001 4 cyl hyundai sonata
You change One spark plug, and One wire at a time. Do you know where your timing belt is? If not, its on either the right or left side of the engine. There is a covor to the timing belt. You take the First plug that is closest to that belt. Then you work your way to the next closest all the way to the last one. Remember, you have to do ONE at a time.
SOURCE: 2000 Hyundai Accent will suddenly stall and wont restart
Have someone check the idle sensor. I had to have mine replaced along with another that I don't remember which one is was.
SOURCE: 2000 Hyundai Accent check engine light on, with loss of RPM's
may be your fuel pump is need to be checked
SOURCE: Hyundai Sonata 2002 idle at high RPM and accelerate 40-45 MPH
Look for a vacuum leak somewhere. This is the most common problem for a high idle.
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