I have a 1993 hyuandai excel that doesnt seem to want to keep running. it turns over but after i drive for a while it sometimes just conks out, as in the revs drop and i have to try pull over so i can try...
All Hyundai excel owners need to be on their toes, and watch for little problems turning into bigger problems. You have to be a dedicated mechanic to keep the little green machine going! So I salute you for being outstanding.
Electrical problems like yours could be an ignition problem you haven't yet gotten to, or could also be a failing fuel pump, hard to say, but as you can see, stalling problems are usually gas or spark related. That's where you should begin checking, but honestly, if you don't have a multimeter, you would only be down to guessing. It would be worth it in the end to pay for a diagnostic test, that or try one used part after another, the computer, the crank angle sensor (not a used one for that), the ignition module. Well, that should cover the ignition system with what you've already replaced. Of course you have to consider the considerable amount of wiring and wiring connectors and relays and such, when saying ignition system. Even the ignition switch is part of it. If you lose spark: the computer, the crank angle sensor, and the ignition module or power transistor as some cars have. Those are what make the coils work to generate high voltage for spark all the time. A lot of electrical components fail when they get hot- a coil is a classic example. The crank angle sensor is another.
Do you have a good fuel filter? Can you hear the fuel pump come on when you turn the key to on? It should come on for a couple of seconds with the key turned to on. When the car stalls, listen for the pump especially, by first just turning the key to on, before you try to start it. If you can't hear the pump, have the fuel pressure checked. The problem may lie down that route.
Just a side note: several years back, I almost bought a '91 excel, not running. But after talking to the owner who was very honest, changed my mind. He said he thought the fuel pump may have gone out again, or the computer may need replacing. There was a common problem in the fuel pump wiring at the computer, as I recall, poor connections at the computer caused an internal short in the computer and it affected the fuel pump.
Well good luck, keeping it tuned and turning, that's the key for older cars.
Aug 11, 2013 |
Hyundai Motor 1993 Excel