7.3L – Illuminated MIL With Misfire Or Lack Of Power And DTCs P0300, P0316, And/Or P0301-P0304 – 2020 Ford F-53 Motorhome Chassis

NHTSA ID Number: 10183414

Manufacturer Communication Number: TSB 20-2370

Summary

Some 2020 F-53 Motorhome Chassis vehicles equipped with a 7.3L engine may exhibit an illuminated malfunction indicator lamp (MIL) with a misfire or lack of power with diagnostic trouble codes (DTC) P0300, P0316, and/or P0301-P0304 built on or before 28-Sep-2020. This may be due to damaged spark plug wire(s). To correct the condition, follow the service procedure to modify the passenger side engine compartment air baffle and replace the engine spark plug wires.

 


Ford F-53/F-59
Ford F-53/F-59

 


Ford

2020 F-53 Motorhome Chassis

Engine: 7.3L

 

Issue: Some 2020 F-53 Motorhome Chassis vehicles equipped with a 7.3L engine may exhibit an illuminated malfunction indicator lamp (MIL) with a misfire or lack of power with diagnostic trouble codes (DTC) P0300, P0316, and/or P0301-P0304 built on or before 28-Sep-2020. This may be due to damaged spark plug wire(s). To correct the condition, follow the service procedure to modify the passenger side engine compartment air baffle and replace the engine spark plug wires.

 

Action: Follow the Service Procedure steps to correct the condition on vehicles that meet all of the following criteria:

  • 2020 F-53 Motorhome Chassis
  • 7.3L engine
  • Illuminated MIL with DTCs P0300, P0316, P0301, P0302, P0303 and/or P0304 with a misfire or lack of power

 

NOTE: Part quantity refers to the number of that service part number required, which may be different than the number of individual pieces. Service part numbers contain 1 piece unless otherwise stated. “As Needed” indicates the part is required but the number may vary or is not a whole number; parts can be billed out as non-whole numbers, including less than 1.

Parts

DescriptionQuantityPart Number
Package Contains 1 Piece, 8 Pieces RequiredIgnition Wire8LC3Z-12286-C

 

Service Procedure

1. Locate the passenger side engine compartment baffle. Does the baffle completely cover the area between the radiator assembly and the battery try as shown in Figure 1?

(1). Yes – proceed to Step 2.

(2). No – this article does not apply. Refer to the Powertrain Control Emission Diagnosis Manual (PC/ED) for normal diagnosis.

Figure 1

engine cooling baffle

 

2. Trim the engine cooling baffle on the passenger side using a suitable cutting tool. (Figures 2-4)

Figure 2

Trim the engine cooling baffle on the passenger

 

ItemDescription
1297 mm
2295 mm

 

Figure 3

Trim the engine cooling baffle on the passenger

 

Figure 4

Trim the engine cooling baffle on the passenger

 

3. Replace all 8 spark plug wires on the engine. Refer to the Workshop Manual (WSM), Section 303-07.

 


2 Affected Products

Vehicles

MAKEMODELYEAR
FORDF-532020
FORDF532020

 

 


1 Associated Document

Manufacturer Communications

20-2370
09 November 2020

MC-10183414-0001.pdf 445.177KB

 


 

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