2004 Kia Sedona: misfire or rough idle

Filed Jul 24, 2012 · Engine, Fuel system · 60,000 miles · AZ

Multiple instances where vehicle has been unable to start. Will subsequently turn over for a period of about 5 seconds and finally "catches" and will run rough. Upon driving the vehicle will run rough, hesitate and stall, mostly at times during a full stop attempting to accelerate to normal driving speed in traffic and through turning. Upon inspection at dealership, no faulty parts found and condition "disappears". Upon receipt of vehicle from dealership, problem has continued to plague vehicle. Replaced many parts under the advisement of the dealership and have never found a solution to the problem. No check engine code present during problem. Has left family stranded on more than a few occasions making vehicle unreliable and unsafe to operate.

Filed Jan 15, 2008 · Acceleration, Suspension · 41,799 miles · FL

Bad misfire in motor causing the cruise control to turn off and trans to slam out and then back into over drive,came close to getting hit in the rear on I-95. I have had this van back to kia miney times and its still not fix. All so the last time I had the van for service I complained abut a bearing noise they did not fix it the noise is getting worse.

Filed Apr 23, 2007 · Brakes, Engine · 48,000 miles · GA

This van has brake problems squeaking and wearing out pads way too fast. I was told nothing is wrong with the brake system but when taking it to a brake shop I was told the calipers are bad, kia has not fixed them and denies that they're bad. The check engine light came on and I was told that a spark plug had misfired, that was fixed under warranty and then another spark plug misfired and was fixed under warranty. The oil level was getting low but I had no leak and I was told that the oil filter was simply loose so they said they fixed it. I asked if I should bring the van back in a week to have the oil level checked and we were assured there was no leak. Check engine light came on again and the oil light flickered, did not stay illuminated, so we took it to the dealership immediately, as the owners manual and the mechanic had stated. Then we're told that there's sludge in the engine and that it will be 2,000 dollars to take it apart and check the damage that we caused from continuing to drive it. They never told us there was any reason to not drive it nor did they mention sludge previously. The van will be towed back to kia tomorrow.

Filed Nov 27, 2006 · Electrical · NJ

I have a 2004 kia sorento 4x4 (that car option not included in complaint form) one morning car started up rough and wouldn't stop. Engine light came on. Dropped off at dealership where they said it was my fuel injectors. They replaced them, but said they wanted to keep car overnight to make sure problem did not repeat. It started rough again with them and engine light came on again. They kept the car next day to dig deeper to find problem. They discovered the wire harness suffered a short and was burnt in 3 different areas. Since harness is connected from computer to spark plugs, fuel injector and other engine components they had to replace everything...but the computer. I got car back after 5 days. 2 days later car started rough idling and started misfiring and check engine light came on. I once again dropped car off at dealership. Said it feels like the same problem, or could be related to work done. They said random misfires are common and cleared computer log and I got car back. Next morning car ran rough again and was misfiring again. I called kia service and said that this car never misfired before or ran rough and how can a random misfire happen so frequently and isn't it coincidental that it only started happening after my wire harness suffered from a short that was directly attached to the spark plugs. Service manager mention that technician working on car thought that computer was malfunctioning but neglected to tell me. I asked if they knew it was malfunctioning, why did they ever give the car back till everything was fixed. He said they need proof and not just maybe's. I told them that the constant misfiring was proof enough. They took the car back and replaced the computer. They sent the computer to kia headquarters to investigate why the computer malfunctioned. I was told that they were worried that this may not be a isolated case.

Filed Feb 6, 2006 · Engine · 10,000 miles · KS

Check engine light on. Engine was knocking. Called the dealer 3 times and each time they tried to tell me it was my gas cap not locked on properly. When I finally brought it in they had to do an entire tune up because a plug was misfiring.

Filed Feb 6, 2006 · Lights · 21,000 miles · KS

At less than 21k miles a low beam headlight burned out. We don't use them for drl. This seems odd and a forum on kia sorento's shows the same concern. After buying new bulbs I find it takes a professional mechanic to install them...the dealer charges $18/bulb for labor only. This sounds like a scam by the manufacturer. This is for a sorento which your database does not allow for an option to choose from. For misfire problem I filed before this I selected sedona instead to get my claim through. 8jb

Filed Aug 5, 2005 · Engine · 2,308 miles · NC

Dt: the vehicle stalled intermittently. The vehicle was taken to the dealer on march 30, 2004. After the engine stalled the check engine light illuminated. The vehicle then sputtered and lost power but slowly regained it. Took vehicle to dealer for this problem at least 6 times. Kia says that a cylinders is misfiring , plugging wires are cross firing. The dates of failure are april 13, 2004, august 13, 2004, october 19, 2004 and march 11, 2005, may 12, 2005 and finally june 21, 2005. The consumer stated that his families lives have been in danger three times. *ak