SUBJECT:
NO START OR HARD TO START CONCERNS
Some 2014~2015MY Forte Koup / 5 DR equipped with a 1.6L GDI Turbo and produced before July 14, 2014 , may experience a hard to start concern or idle rpm fluctuations while stationary. If you encounter any of these concerns, check for white residue build up in the High Pressure Fuel Pump Inlet (see image below) which may cause a restriction and loss of fuel volume to the injectors. Follow the inspection and repair procedure shown below to resolve the concern. Note: If after inspecting the pump inlet no white residue is found, continue diagnosing per the Service Information on KGIS.
Inspection & Repair:
- Turn the ignition OFF and disconnect the negative cable from the battery.
- Remove the fuel pump relay and the electrical connector for the High Pressure Fuel Pump.
- Reconnect the negative cable to the battery.
- Run the engine for twenty (20) seconds to lower the pressure in both the high or low pressure lines. The engine may shut off within the twenty (20) second period. If not, turn the engine off.
- Disconnect the supply line to the High Pressure Pump and inspect the High Pressure Fuel Pump Inlet for white residue (see image).
- If white residue is found, use Kia
’s “Throttle Plate & Induction Cleaner (P/N UM040-CH010)” to spray off and/or dissolve any residue present in the inlet. In addition, pour a bottle of Techron Concentrate Plus (P/N UM011-CH056) into the fuel tank. - Reinstall / re-connect all components by reversing the order of removal. Start engine to confirm proper operation and make sure there are no fuel leaks.
- The procedure described above will cause a DTC to set. After completing the repair, clear any DTC(s) using GDS and reset the adaptive memory.
- QUALITY ASSURED
- Reduces: rough idle, engine surge, hesitation, and spark plus fouling
- 20 oz. bottle.
- Improves: cold start performance, and fuel stability for up to one year
Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API
- DEEP FUEL SYSTEM CLEANING - Cleans the entire fuel system (injectors, carburetor passageways, intake valves, and chamber areas) to help restore power, MPG, and throttle response.
- FUEL ADDITIVE FOR GASOLINE AND DIESEL ENGINES - Breaks down fuel residues and varnish for smoother idling and cleaner combustion in gasoline and diesel engines.
- OIL TREATMENT FOR ENGINE CLEANING - Cleans sludge and deposits that can restrict oil flow and lubrication in motor oil crankcases, helping support longer engine life in car and truck engines.
- FUEL STABILIZER - Keeps gas or diesel fresh for up to 2 years. Ideal as a fuel stabilizer and gas stabilizer for stored cars, motorcycles, and generators.
- SAFE FOR ALL ENGINES & FUELS - Compatible with all gasoline and diesel fuels and blends, including E10 and E85. Trusted for use as a gasoline and diesel fuel additive.
Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API
- The world’s #1 fuel additive for both gasoline and diesel engines
- A great tune-up in a bottle – treats gasoline, diesel fuel and increases MPG
- Cleans and lubricates the fuel system, including fuel injectors, carburetor and combustion chamber
- Improves fuel economy by burning excess exhaust emissions
- Increases power and acceleration by improving fuel flow and reducing deposit buildup
Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API
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