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Discussion Starter #1 (Edited)
won't run in forward gears -- up date see last page

I've just put new NGK plugs and NGK wires on my 2002 Kia Rio .. It idles great and you can rev it up etc.. Put it in reverse and it runs great, I could back it to town.. BUT, put it in any forward gear and it won't run, it just doesn't want to go forward. Put it in nuetral and rev it up, fine, put it in reverse fine..
But put it in forward and it will chug and die, it won't even idle in a forward gear....
This is strange and weird to me.
What can cause such an issue ? Has anyone ever experienced this and if so what was the cause ? Any help at all would be great !
Please I need some direction and/or advice on what is causing this .....
 

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Ford Escort '01, Kia RIO '03
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What did you gap your plugs at? What kind of NGK plugs did you use?

Also Please fill out your profile as to general location and make, model, year. It really does help us help you better in the future.

Now I see it in your sig. line, just not where I look for it.
 

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Discussion Starter #3
I used NGK BKR6E plugs, the recommended ones for this engine..
Like I said it starts, idles and drives in reverse fine, it's just when you put it
in a forward gear it stalls, chugs and won't go.. I've checked the fuses and they
are fine. It's just strange how well it runs etc until you put it in drive.
 

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Discussion Starter #4
I just started it, reved it up, put it in reverse and back all over the place, I live in the country so I went fast and slow, no problem. When I put it in drive it stalled and died.
Started right up but when I went to drive it chugged and farted enough for me to get it back under the shed. So what would cause such an issue ?? I'm at a loss ????
 

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Now I off hand don't know what to tell you. Does it give any codes? If its running this bad I would think the CEL would come on.
 

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Discussion Starter #8
The CEL is on but I live litterally in the middle of no where. It's 7 miles to the closest little town and 35 to somewhere they would have a code reader and I don't think this car would make 35 miles.
I drove it to town today, 7 miles, and back it ran crappy and smelled like gas very bad..
Where does the gas line hook up to the rail or whatever ? Tomorrow I'll raise the hood and see if I can find out where the gas is coming from.
Any suggestions will be appreciated.
 

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2008 SpectraSX, 2014 Optima LX,2006 Jeep Liberty, Linux Mint Mate
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You hvae not mentioned the mileage on your Rio. There is a know problem with automatic transmissions in the pre2003 KIAs. They are a re-design of a Mazda/Ford tranny. The transmissions react with old transmission fluid and create what has been called a goo or gunk that plugs up the valve body, and torque converter creating shifting problems and no or late gears. The tranny fluid should be replaced every 30k miles to prevent this from happening.
A poster on these forums named Loyal 2.7T has some posts on how he re-gained full function on his 2000 Sephia. Look at the top of the Spectra section for a sticky about this.
Dave
 

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Discussion Starter #10
I've got 120,000 miles on my Kia. And it's been great up till now. I had the timing belt changed at 65,000.
I looked and there seems to be gas or something on the back side of where the spark plugs go and under the air filter box.
Where would this be coming from and why ? It's never been there before and I've never smelled gas before.
 

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Discussion Starter #11
OK.. besides where the gas smell and fuel is coming from ??
Is there a relay that controls both sides of the coil pack ? Can the relay go bad
where just 1/2 of the coil pack works ?
Thanks and again any help will be appreciated.
 

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Discussion Starter #12
Up date ......
The entire problem is related to the coil pack connection for cylinders 2 and 3 ... The front clip or pig tail .. I've got two small alligator clips on there now and the car runs fine. I just got back, up to 70 mph idles great etc.. I would never have guess that small connector could cause so many problems....
Now, does anyone know where I can get a connector ? These alligator clips are just a temp fix. I'd like to find a connector and do it right.. The sealership wants $550 for a new wire loop, hell all i need is one small connector... Any ideas where ?????
 

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That is one for the books. It ran fine in reverse (on two cylinders) but not in the forward direction? That would be the cause of the gas smell (unburned) though. I would have thought that the idle would have been terrible. There are many posts about the plastic connector falling apart and the cost(s) involved in replacing the harness.

I don't know your soldering skills but I'd solder the wires (if long enough) straight to the terminals and use some heat shrink insulation (Harbor Freight).

Dave
 

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Discussion Starter #14
Dave,
My soldering skills suck.. Right now the alligator clips are doing fine, I just drove to town and back with no problems. I may try and go to Corpus tomorrow and visit the stealership.
A mechanic friend of mine told me reverse is the lowest gear in the veh. and thats why he thinks it would go in reverse and not forward. Who knows this entire thing is a mystery to me.
Thanks to everyone for all the help and hopefully I won't be back for a while...
 
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