Failure Of Water In Fuel Separator (WIF) Sensor On Certain CAT Products{1263, 1439} Caterpillar

Articulated Truck:

735 (S/N: B1N1-UP)

Excavator:

311D RR L (S/N: CLA272-UP; LKA385-UP; PNJ1-UP; DWR1-UP; DDW134-UP)

312D L (S/N: SKA267-UP; JBC1349-UP)

312D LC (S/N: KCD373-UP)

312D L (S/N: RKF1-UP; XGK1-UP)

312D (S/N: RHL1-UP; DLP1-UP)

312D L (S/N: KES1-UP)

312D (S/N: HCW1-UP)

314D LCR (S/N: BYJ1-UP; TXN611-UP)

314D CR (S/N: WLN1-UP; PDP1-UP)

314D LCR (S/N: SBP1-UP; XHR1-UP; SSZ1-UP)

315D L (S/N: KBD1-UP; TLE1-UP)

315D (S/N: NCM1-UP)

315D L (S/N: BZN134-UP; CJN1-UP; JGS626-UP)

319D L (S/N: ZCA1-UP; AYF242-UP)

319D (S/N: BZH453-UP)

319D LN (S/N: FMH196-UP; WBJ1-UP; KFM195-UP)

319D L (S/N: KRM1-UP)

319D LN (S/N: RJP151-UP)

319D LC (S/N: EAW1-UP)

319D LN (S/N: DAY170-UP)

319D L (S/N: ZGZ1-UP)

320C (S/N: MAB486-UP)

320C L (S/N: PAB5020-UP; EAG1-UP)

320C (S/N: BPR6848-UP)

320C L (S/N: HKT500-UP)

320D RR L (S/N: ZGB1-UP; HJC137-UP; DHE1-UP)

320D L (S/N: MDE1193-UP)

320D RR L (S/N: TAE117-UP)

320D (S/N: A6F1941-UP)

320D L (S/N: A8F2756-UP; A9F157-UP; KGF1-UP)

320D (S/N: KTF761-UP)

320D L (S/N: MGG1855-UP)

320D (S/N: MCH1-UP)

320D L (S/N: TDH1-UP)

320D RR L (S/N: XCK167-UP)

320D (S/N: FAL1-UP; KLM1-UP; PCM3160-UP)

320D FOREST MACHINE (S/N: KHN1-UP)

320D L (S/N: SPN1-UP)

320D LN (S/N: WBN1-UP)

320D (S/N: BZP2881-UP)

320D L (S/N: GDP1-UP)

320D RR (S/N: YDS1-UP)

320D (S/N: DFT1-UP)

320D RR L (S/N: EJT1-UP)

320D RR (S/N: GMX1-UP)

320D LN (S/N: PCX161-UP)

320D L (S/N: PHX1-UP)

320D (S/N: JFZ1-UP; JGZ2934-UP)

321D LCR (S/N: TXA1-UP)

321D CR L (S/N: PBD232-UP)

321D LCR (S/N: MPG1-UP)

321D CR L (S/N: NAS461-UP; MDT309-UP)

321D LCR (S/N: KBZ177-UP)

322C (S/N: DAA193-UP)

322C L (S/N: FED184-UP)

323D (S/N: RAC1-UP)

323D L (S/N: WGC189-UP)

323D SA (S/N: SED1-UP)

323D L (S/N: YSD1329-UP; PBE3739-UP)

323D (S/N: WNE1-UP)

323D L (S/N: ZMF1-UP)

323D LN (S/N: CWG162-UP)

323D (S/N: JLG446-UP)

323D L (S/N: LFL1-UP)

323D (S/N: BYM857-UP)

323D L (S/N: PBM1-UP)

323D SA (S/N: NES1-UP)

324D LN (S/N: EJC1-UP)

324D (S/N: MND1-UP)

324D L (S/N: T2D701-UP; JJG1299-UP; SYM805-UP; TSN1-UP; DFP1-UP)

324D (S/N: JZR1-UP)

324D L (S/N: JAT1-UP)

324D (S/N: CJX1388-UP)

325C L (S/N: BTD180-UP; BFE2139-UP)

325C (S/N: AMH804-UP)

325C L (S/N: BMM266-UP)

325C (S/N: BKW196-UP)

325D L (S/N: GPB1120-UP; KBE312-UP)

325D LN (S/N: PKE1203-UP)

325D (S/N: KDG164-UP; C4H1-UP; DBH676-UP; RJK1-UP)

325D LL FOREST MACHINE (S/N: C8L1-UP)

325D L (S/N: A3R1436-UP; SCR1-UP; T2S1-UP)

328D LCR (S/N: SWF1-UP; GTN636-UP; MKR1-UP; RMX290-UP)

329D L (S/N: MNB1-UP; DJF458-UP)

329D (S/N: JHJ492-UP; WDK1-UP; BYS1-UP)

329D L (S/N: WLT603-UP; YFW165-UP)

329D (S/N: DTZ163-UP)

330C L (S/N: CYA133-UP)

330C (S/N: MCA173-UP; JAB365-UP)

330C L (S/N: KDD137-UP; GKX149-UP)

330D L (S/N: NBD1474-UP)

330D LN (S/N: GGE904-UP)

330D L (S/N: B6H647-UP)

330D (S/N: EAH1635-UP)

330D L (S/N: FFK510-UP; JLP946-UP; MWP1-UP; RAS1-UP)

330D (S/N: MEY183-UP)

336D L (S/N: PRF1-UP)

336D (S/N: KDJ393-UP)

336D L (S/N: WRK1-UP)

336D (S/N: W3K1673-UP)

336D L (S/N: MPL517-UP)

336D (S/N: MYP1-UP; JBT3906-UP; KKT1030-UP; PGW1-UP)

336E L (S/N: BZY1-UP)

345C L (S/N: TBA149-UP; L5B1-UP; ESD245-UP; WDE1-UP; TDG412-UP; GPH537-UP)

345C (S/N: SCN1-UP)

345C L (S/N: DHP274-UP; PJW2442-UP)

345C (S/N: BWY348-UP)

345D L (S/N: BYC1-UP; RGD1-UP; RAE151-UP; YEE1-UP)

345D (S/N: NEG1-UP)

345D L (S/N: RGG269-UP; EEH1-UP; KFH299-UP; NLM1-UP; JKN110-UP; PBT587-UP; LKY257-UP)

349D L (S/N: WTD1-UP; NNF1-UP; PZG1-UP)

349D (S/N: MEN1-UP)

365C L (S/N: ELC602-UP; MCS1-UP; MCY1-UP)

385C L (S/N: EDA557-UP)

385C FS (S/N: MMA249-UP)

385C L (S/N: KGB498-UP; SBE1-UP)

385C (S/N: KKK1-UP)

385C FS (S/N: EAM1-UP)

385C (S/N: JCM1-UP)

M318 (S/N: 8AL1-UP)

M325C MH (S/N: XJA1-UP)

M325C MH HD (S/N: PAN343-UP)

M325D MH (S/N: EDF1-UP)

M325D MH L (S/N: KGG1-UP)

Motor Grader:

120K (S/N: SZN1-UP)

Mobile Hydraulic Power Unit:

324D MHPU LN (S/N: KJR1-UP)

325D MHPU L (S/N: C3N1-UP; X3N1-UP)

330D MHPU L (S/N: H3D1-UP)

336D MHPU L (S/N: L5X1-UP)

345C MHPU L (S/N: M3E1-UP)

345C MHPU (S/N: M3F101-UP)

345D MHPU (S/N: P5D139-UP)

365C MHPU (S/N: GSZ1-UP)

385C MHPU (S/N: M4E1-UP)

385C MHPU L (S/N: M3W1-UP)

Off-Highway Truck/Tractor:

793F (S/N: SSP1-UP)

795F Series AC (S/N: ERM1-UP)

797F (S/N: LAJ1-UP)

Track-Type Loader:

973D (S/N: LCP1-UP)

Track-Type Tractor:

D6K XL (S/N: FBH1-UP)

D6N XL (S/N: DJA1-UP)

D6N LGP (S/N: DJY1-UP)

Wheel Loader:

966K (S/N: PBG1-UP; TFS1-UP)

972K (S/N: PEM434-UP; Z4W1-UP)

Introduction

ReferenceRefer to the Service Magazine, SEPD1375, "Troubleshooting the "Water Separator Has Water" Warning Message".

The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.

Problem

The Water in Fuel Separator (WIF) sensor fails during summer months, especially during the months of June, July, and August. The failures will not happen typically until after approximately 600 machine hours. The WIF sensor fails by giving a false warning that water is present in the bowl of the fuel and water separator filter.

Solution

Caterpillar is aware of the problem, but an Interim Repair has not been defined. Replace with same part. If you have an effective Interim Repair, communicate through your Technical Communicator and include the TIB and/or CPI Issue number. Follow the troubleshooting procedures found in Service Magazine, SEPD1375 and record the results in claim summary.