MIL With Misfire DTCs/Water In Spark Plug Wells And/Or Corrosion On Ignition System Components- 2019-2021 Ford Ranger

NHTSA ID Number: 10198581

Manufacturer Communication Number: TSB 21-2147

Summary

Some 2019-2021 Ranger vehicles may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P0300, P0301, P0302, P0303, P0304 and/or P0316 stored in the powertrain control module (PCM). This may be due to water build up in the spark plug well(s) which can lead to signs of corrosion on ignition system components. To correct the condition, follow the Service Procedure to resolve the source of all DTCs and to install an engine appearance cover.

 


2021 Ford Ranger
2021 Ford Ranger

 


Model:

Ford

2019-2021 Ranger

 

Issue: Some 2019-2021 Ranger vehicles may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P0300, P0301, P0302, P0303, P0304 and/or P0316 stored in the powertrain control module (PCM). This may be due to water build up in the spark plug well(s) which can lead to signs of corrosion on ignition system components. To correct the condition, follow the Service Procedure to resolve the source of all DTCs and to install an engine appearance cover.

 

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

  • 2019-2021 Ranger
  • Illuminated MIL with DTCs P0300, P0301, P0302, P0303, P0304 and/or P0316 stored in the PCM
  • Presence of water in one or more of the spark plug well(s) and/or signs of corrosion on ignition system components
  • Engine appearance cover not installed

 

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

Service Part Number Quantity Description
L1MZ-6A949-A 1 Engine Cover
W714647-S450-B 1 Engine Appearance Cover Stud Bolt Package Contains 4 Pieces, 2 Pieces Required
W520201-S450B 1 Engine Appearance Cover Nuts Package Contains 4 Pieces, 2 Pieces Required
XG-3-A MIL With Misfire DTCs/Water In Spark Plug Wells And/Or Corrosion On Ignition System Components- 2019-2021 Ford Ranger » small light As Needed Motorcraft® Silicone Brake Caliper Grease and Dielectric Compound

 

Service Procedure

1. Resolve engine misfire DTCs P0300, P0301, P0302, P0303, P0304, and/or P0316 per normal diagnostics outside of this article. Refer to Powertrain Control/Emission Diagnosis (PC/ED) Manual. Proceed to Step 2.

2. Open the hood to access the engine compartment.

3. Locate the 2 engine appearance cover mounting bosses on the valve cover. (Figure 1)

Figure 1

 

4. Install the 2 engine appearance cover stud bolts to the valve cover and tighten to 10 Nm (89 lb-in). (Figure 2)

Figure 2

 

5. Lubricate each grommet on the engine appearance cover with silicone brake caliper grease and dielectric compound or equivalent to aid in installation of the cover.

6. Install the engine appearance cover. (Figure 3)

Figure 3

 

7. Install and tighten the 2 engine appearance cover nuts to 10 Nm (89 in-lb). (Figure 4)

Figure 4

 

 


3 Affected Products

Vehicle

MAKE MODEL YEAR
FORD RANGER 2019-2021

 


1 Associated Document

Manufacturer Communications

21-2147
07 June 2021

https://www.nhtsa.gov/recalls?nhtsaId=10198581

MC-10198581-0001.pdf 239.754KB

MC-10198581-0001

 


 

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