Question about 1999 Chevrolet S-10 Pickup
I DRIVE ON FREEWAY ABOUT 60MPH(TRYING TO SAVE GAS)
EVERY ONCE AND AWHILE, THE TRUCK JOLTS, ACTING LIKE SPARK CUT OUT FOR 1 SECOND, FUEL PUMP HAS BEEN REPLACED ALONG WITH FILTER, A SHORT TIME AGO, THAT IS WHY I THINK IT IS A SPARK PROBLEM, NO CODES IN SYSTEM, AND IT DOESNT MATTER WHERE THROTTLE IS AT FREEWAY SPEEDS, IT ACTS LIKE A HICK-UP BUT NO LOSS OF POWER
Had the same issue with my 99 s-10. Ended up being the throttle position sensor.
Posted on Aug 15, 2008
You can also have problems with a misfire caused by old spark plug wires. Easy enough to check for. Look under the hood with the vehicle running in the dark. If you see flashes of electricity around the wires or even just one of them you need a new wire set. It may not be happening very often though, just at the same frequency of the miss.
Posted on Aug 02, 2008
The spark unit is shorting out to system ground. remove the spark unit and look carefully at where it is mounted and look for small cracks in the electrical insulation material that was poured into it at the spark unit factory. if water gets into this area, havoc occurs.
Posted on May 19, 2008
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