Yukon xl

Asked by Nov 07, 2019 at 02:40 PM about the 2000 GMC Yukon XL

Question type: Maintenance & Repair

My 2000 yukon xl has service engine soon
light on and is running poorly it turns on but
looses power as soon as i put in drive. I
changed the coils spark plugs and looked at
the lifters they seem to be fine the codes that
are coming up are po300 and po200 please
help...

1 Answer

258,095

I think you might have a bad injector. One code may indicate an injector problem and the other is a misfire code which could be caused by a bad injector. Since these are generic codes I can't say which one is the problem. I might start with a good fuel injector cleaner.

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