Hey everyone!!
I've had a 2004 Kia Sorento EX for about two years now, and I've had a persistent [and extremely frustrating] issue, and I'm really hoping that someone here can help me out.
I purchased the SUV from a private seller, who'd literally let it sit in his driveway for 6 months. He purportedly just never got around to selling it, but I now understand the REAL reason why. From almost the beginning, I've had one issue after another - and to date, I've spent roughly $4,000 in repairs and replacements. At this stage, a majority of the components in my engine compartment are brand new, but I still have this lingering, persistent rough idle, piss poor acceleration and engine stumble at high speeds.
It FEELS like a misfire, because that would likely explain all of these symptoms. Cruising, the engine is fine, runs beautifully. But, when I accelerate from a stop light, there's a slight stumble, that kinda feels like the engine is tripping over itself trying to move. Then, once I'm moving, shift timing is way off. It also feels like a lean or rich condition, hard to tell, because the gas pedal can tend to have a "spongy" feeling...where there's not as much pressure behind the throttle as there should be. Good lord, I hope I don't sound like a complete idiot trying to describe this
Here is a complete list of all the replacements, repairs and services I've had over the past two years:
[2012] 07.17 - New NGK Spark Plugs
[2012] 07.18 - New Tires
[2014] 07.20 - New Throttle Position Sensor
[2014] 07.24 - New In-Tank Air Filter [Warranty Item]
[2014] 07.27 - TPS Adjustment
[2014] 08.29 - New Driveshaft
[2014] 08.29 - Exhaust Manifold Leak
[2013] 01.23 - New Fuel Filter
[2013] 02.19 - Cleaning of Mass Airflow Sensor
[2013] 02.25 - Cleaning of Throttle Body and Air Intake
[2013] 04.02 - Replacement of Power Steering Hi-Pressure Host
[2013] 06.27 - New Idle Air Control Valve
[2013] 09.09 - New Fuel Pump
[2013] 09.30 - New Oxygen Sensor [Upstream]
[2013] 10.04 - New Oxygen Sensor [Downstream]
[2013] 10.04 - Complete Fuel System Cleaning Service
[2013] 10.23 - Transmission Flush
[2014] 02.03 - New Engine Air Filter
[2014] 02.03 - ANOTHER Complete Air Intake Cleaning Service
[2014] 04.14 - New Timing Belt
[2014] 04.24 - A/C Service
[2014] 05.05 - Replacement of Transmission Mount
[2014] 05.22 - New Engine Coils
[2014] 05.27 - New Battery
[2014] 05.30 - New Spark Plug Wires
Needless to say, I am at a TOTAL loss with this car. I've tried very hard to take good care of it, but it has become a living nightmare. No codes, so my mechanic is at a total loss. And after every major service, I always reset the ECU by unplugging the battery. So, I have no idea what else to look for. Does anyone have any ideas? I'm open for suggestions!! Thanks everyone
I've had a 2004 Kia Sorento EX for about two years now, and I've had a persistent [and extremely frustrating] issue, and I'm really hoping that someone here can help me out.
I purchased the SUV from a private seller, who'd literally let it sit in his driveway for 6 months. He purportedly just never got around to selling it, but I now understand the REAL reason why. From almost the beginning, I've had one issue after another - and to date, I've spent roughly $4,000 in repairs and replacements. At this stage, a majority of the components in my engine compartment are brand new, but I still have this lingering, persistent rough idle, piss poor acceleration and engine stumble at high speeds.
It FEELS like a misfire, because that would likely explain all of these symptoms. Cruising, the engine is fine, runs beautifully. But, when I accelerate from a stop light, there's a slight stumble, that kinda feels like the engine is tripping over itself trying to move. Then, once I'm moving, shift timing is way off. It also feels like a lean or rich condition, hard to tell, because the gas pedal can tend to have a "spongy" feeling...where there's not as much pressure behind the throttle as there should be. Good lord, I hope I don't sound like a complete idiot trying to describe this
Here is a complete list of all the replacements, repairs and services I've had over the past two years:
[2012] 07.17 - New NGK Spark Plugs
[2012] 07.18 - New Tires
[2014] 07.20 - New Throttle Position Sensor
[2014] 07.24 - New In-Tank Air Filter [Warranty Item]
[2014] 07.27 - TPS Adjustment
[2014] 08.29 - New Driveshaft
[2014] 08.29 - Exhaust Manifold Leak
[2013] 01.23 - New Fuel Filter
[2013] 02.19 - Cleaning of Mass Airflow Sensor
[2013] 02.25 - Cleaning of Throttle Body and Air Intake
[2013] 04.02 - Replacement of Power Steering Hi-Pressure Host
[2013] 06.27 - New Idle Air Control Valve
[2013] 09.09 - New Fuel Pump
[2013] 09.30 - New Oxygen Sensor [Upstream]
[2013] 10.04 - New Oxygen Sensor [Downstream]
[2013] 10.04 - Complete Fuel System Cleaning Service
[2013] 10.23 - Transmission Flush
[2014] 02.03 - New Engine Air Filter
[2014] 02.03 - ANOTHER Complete Air Intake Cleaning Service
[2014] 04.14 - New Timing Belt
[2014] 04.24 - A/C Service
[2014] 05.05 - Replacement of Transmission Mount
[2014] 05.22 - New Engine Coils
[2014] 05.27 - New Battery
[2014] 05.30 - New Spark Plug Wires
Needless to say, I am at a TOTAL loss with this car. I've tried very hard to take good care of it, but it has become a living nightmare. No codes, so my mechanic is at a total loss. And after every major service, I always reset the ECU by unplugging the battery. So, I have no idea what else to look for. Does anyone have any ideas? I'm open for suggestions!! Thanks everyone