Engine - Sag On Hard Left Hand Turns
84chrysler5Models
1984 Vehicles Equipped With 2.2L Electronic Fuel Injection or Turbocharged Engine; 1985 Vehicles With 2.2L Turbocharged Engine
Subject
Sag When Making Hard Left Hand Turn
Index
FUEL
Date
December 3, 1984
No..
14-49-84
SYMPTOM/CONDITION
Vehicle may experience a sag when making a hard left hand turn. This condition occurs at low fuel levels (1/4 tank or less) and is due to the in-tank filter being momentarily exposed to air.
This repair should only be performed on vehicles with build dates on or after the following 1984 MDH's, and before the following 1985 MDH's.
Identify the assembly plant where suspect vehicle was built by the eleventh character of the VIN (Vehicle Identification Number).
VIN Assembly Plant 1984 MDH 1985 MDH
G St. Louis 03-19-XX 10-29-XX
F Newark 03-23-XX 12-04-XX
C Jefferson 05-17-XX 11-08-XX
N Sterling Not in- Not in-
cluded cluded
DIAGNOSIS
Attach Miller Special Tool Fuel Pressure Gauge C-3292 and Adapter Hoses C-4799 to vehicle and road test. If vehicle sags when making a hard left turn and at the same time fuel pressure drops, proceed to repair procedure.
1984 EFI VEHICLES ONLY
On EFI vehicles, this condition is likely due to a misaligned in-tank filter. Check for proper alignment as follows:
1. Lower fuel tank by loosening straps (tank need not be removed.)
2. Spin off the lock ring on the fuel tank pump unit and remove the fuel pump assembly from the tank, being careful not to damage the filter.
FIGURE 1:
3. Visually check the filter to assure that it is properly oriented to the fuel pump unit. Turn the pump over and sight through the notch in the bottom of the flange (Figure 1). A correctly positioned filter will be directly in line with the two center rivets and the notch in the flange.
4. If filter is found to be out of location, realign to the proper position (see above) and no further service is required on EFI vehicles. Reinstall fuel pump assembly in the tank, again being careful not to damage the filter and secure lock ring, and reinstall fuel tank on vehicle.
5. If the filter was found to be in the proper location when checked in Step 3, proceed to replace the tank per the following turbo procedure.
TURBO VEHICLES
PARTS REQUIRED
1 - Fuel Tank PN 4279603
1 - Gauge Sending Unit PN 4051866
1 - Gauge Sending Unit Seal PN 1948757
1 - Hose - Fuel Return Tube to Tank PN 4279366
3 - Clamp - 1/4" Return Hose PN 6500650
1 - Clamp - 5/16" Supply Hose PN 6500651
Reuse original fuel pump assembly.
1985 Turbo Vehicles Only:
1 - Rubber Cap PN 3580172
Fuel Tank Replacement Procedure
1. Remove fuel tank and gauge sending unit, and transfer hardware to new tank per service manual procedures.
2. Install Gauge Sending Unit Seal PN 3404451.
FIGURE 2:
3. When installing new sending unit assembly into new tank, attach in-tank hose 8-1/4" to sending unit nipple using 1/4" Clamp PN 6500650. Then install sending unit (Figure 2).
FIGURE 3:
CAUTION: BE CERTAIN THERE IS NO INTERFERENCE BETWEEN HOSE AND FLOAT ASSEMBLY (FIGURE 3).
4. Reinstall fuel tank per service manual procedures.
5. Replace return hose on vehicle with Return Hose, PN 4279366, and attach with 1/4" Clamp PN 6500650.
6. Attach existing supply hose to new sending unit and secure with 5/16" Hose Clamp PN 6500651.
7. On 1985 turbo equipped vehicles cap 1/4" return tube on pump flange with Rubber Cap PN 3580172.
8. Start vehicle and inspect for leaks.
POLICY: Reimbursable within the provisions of the warranty
TIME ALLOWANCE:
Labor Operation No. Tank Replacement 14-49-84-90 1.6
Reposition Filter 14-49-84-90 1.2
FAILURE CODE: AM - Authorized Modification