2008 santa fe #1 cylinder mis fire

Asked by May 26, 2014 at 09:32 PM about the 2008 Hyundai Santa Fe GLS AWD

Question type: Maintenance & Repair

when I start my santa fe it idles fine but after you drive it for a few minutes the engine light comes on and starts flashing ,when this happens it starts idling rough and when suv changes gears rpm gauge revs up, had a diagnostic check ran and it said #1 cylinder misfire changed spark plug and coil but still runs rough

3 Answers

104,285

http://www.obd-codes.com/p0301 -- check this out for possible causes and solutions.

4 out of 4 people think this is helpful.
59,025

Could be a bad fuel injector on that cylinder. Compression test that cylinder. If the compression is good (100psi or higher) start looking at that fuel injector. HTH. -Jim

1 out of 1 people think this is helpful.
9,455

Possibly scorched valve,compression test want show this,because there is no bent valve,to loose compression.Its just Scorched and will not fire.You have replaced all components.I think I would do the compression test anyway,but when it dosen,t show,anything this ii what it will be.

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