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Home >> GMC >> 1991 >> Value Van 7.4 N >> Repair and Diagnosis >> External Pages >> Different car >> Section 88 (3.3L V6 CNG - VIN [J]) >> Removal & Installation >> Fuel Lines & Fittings >> Installation (New Fittings)

Installation (New Fittings)

WARNING: This page is about a different car, the 1995 Plymouth Voyager, 1995 Plymouth Grand Voyager, 1995 Dodge Grand Caravan, and 1995 Dodge Caravan. However, it is still accessible from the selected car via links, so may be relevant.
  1. See SERVICE PRECAUTIONS  under FUEL LINES & FITTINGS before servicing. Install fuel line with nut and ferrules into fitting. See Fig 1. Ensure fuel line is fully seated in fitting.
  2. Tighten nut finger tight. Place scribe mark at 6 o'clock position on nut. See Fig 2. Place wrench on fitting. Tighten nut 1 1/4 turn. Ensure scribe mark is now at 9 o'clock position. See Fig 2.
  3. Check fitting using go/no-go gauge. See Fig 3. Fitting is properly tightened if go/no-go gauge does not fit between nut and fitting.
    CAUTION: DO NOT  install go/no-go gauge on fitting while tightening the nut.
  4. If go/no-go gauge fits between fitting and nut after tightening nut 1 1/4 turns, slowly continue to tighten nut in small increments until go/no-go gauge no longer fits. DO NOT  overtighten nut.
  5. Perform fuel line and fitting leak test after servicing fuel line and fitting. See FUEL LINE & FITTING LEAK TEST .
Fig 1: Exploded View Of Fuel Fitting Assembly
G94A65904Courtesy of CHRYSLER CORP.
Fig 2: Tightening Nut On Fuel Fitting
G94B65905Courtesy of CHRYSLER CORP.
Fig 3: Checking Fuel Fitting Using Go/No-Go Gauge
G94C65906Courtesy of CHRYSLER CORP.
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