2003 KIA Sedona, son-in-law over heated and blew head gasket. Had heads machined, replaced gaskets and re-assembled, van ran very rough, rechecked timimg marks, ok. Getting code 305, checked and found plugs fouled badly, replaced all plugs, van still ran rough with no power. Found cats plugged, probably from coolant contamination, bypassed cats for now. Van runs somewhat better until it gets to operating temp, low power and still getting code 305. Help!
Re: 2003 KIA Sedona, son-in-law over heated and blew head...
Timing belt set set wrong firing to early.this a classic case of timing gone wrong.even one notch out will result in a badly running engine.bring it back and get it retimed on the belt/chain.adrian
Kinda what I keep coming back to as well, I'll tear it down again and check it tomorrow. Thanx.Kinda what I keep coming back to as well, I'll tear it down again and check it tomorrow. Thanx.
You can't post conmments that contain an email address.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
have a compression test done to check for gasket problems
when hot have a radiator shop do a coolant system pressure teat to see where he system is leaking
possible head gaskets but more probable rusted welsh plugs in the block or head/s
Blown head gasket sounds like mate. or else could be blocked radiator and the water is not circulating to cool the engine or give out heat have it flushed by a garage might solve your problem if it doesnt more then likely head gasket.
sound like a blown head gasket and a worped head, when removing head for gasket replacement check head for flatness also preasure test it for cracks and leaks. find cause of over heating replace cap,radiator, thermostate, hoses
Hi!! check the oil if is like milk color head gaskets problems . o. if is the rear maybe the water bypass hose o this van has rear heaterinside the van . but follow the lines by the chasis on the bottom thats two thick lines about 5/8. o 3/4 . this line provide heat to the back
×