1999 Kia Sportage Repair Question
Topics covered: Compression, Vacuum leak, Coil pack.
Mileage: 95,000 miles.
Mileage: 95,000 miles.
Asked on June 7, 2012
"misfire" codes keep coming back and engine will run rough.
Replaced spark plugs, both coil packs, and o2 sensors. upon start up, car will run fine for a few seconds, then start to run rough. scan and will get either #2 or #4 cyl. misfire code.
Answer
Replied on June 7, 2012
missfires come from, low compression, bad plug, bad coil, vacuum leak or injector issue. all these need to be checked before throwing parts at it. take your time and verify each item. i would start with a compression test.
Roy
Replied on June 10, 2012
what should be a good compression reading ? all cyl. avg about 105.
Replied on June 10, 2012
thats not great but good enough. thats a good start.
Roy
Replied on June 10, 2012
i'm at a lost at this point, what should i try next????? cant find any vacuum leaks.