NHTSA ID Number: 10230773
Manufacturer Communication Number: TSB 23-2011
Summary
Some 2019-2022 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.
Model:
Ford
2019-2022 Ranger |
Issue: Some 2019-2022 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 to correct the condition on vehicles that meet all of the following criteria:
- 2019-2022 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
Parts
| Service Part Number | Quantity | Description |
| L1MZ-6A949-C | 1 | Engine Appearance Cover Kit |
XG-3-A
Ford Genuine Ford Fluid XG-3-A Silicone Brake Caliper Grease and Dielectric Compound - 3 oz.
Last update on 2026-06-09 / Affiliate links / Images from Amazon Product Advertising API | As Needed | Motorcraft® Silicone Brake Caliper Grease and Dielectric Compound |
As Needed indicates the amount of the part may vary and/or is not a whole number. Parts can be billed out as non-whole numbers, including less than 1.
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 the 2 engine appearance cover nuts and tighten to 10 Nm (89 lb-in). (Figure 4)
Figure 4
4 Affected Products
Vehicle
| MAKE | MODEL | YEAR |
| FORD | RANGER | 2019-2022 |
1 Associated Document
Manufacturer Communications
23-2011
13 January 2023
MC-10230773-0001.pdf 559.435KB
NHTSA ID Number: 10207890
Manufacturer Communication Number: TSB 22-2025
Summary
Some 2019-2022 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.
1 Associated Document
Manufacturer Communications
22-2025
03 February 2022
MC-10207890-0001.pdf 222.235KB
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.
1 Associated Document
Manufacturer Communications
21-2147
07 June 2021
MC-10198581-0001.pdf 239.754KB
NHTSA ID Number: 10228855
Manufacturer Communication Number: SSM 51239
Summary
Some 2019-2022 Ranger vehicles not equipped with an engine appearance cover 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 prevent reoccurrence, an engine appearance cover must be installed on the vehicle. Currently, the engine cover (SPN: L1MZ-6A949-A) is not available to order and a new engine cover kit is being released. Repair the vehicle by replacing suspect ignition system components and schedule an appointment with the customer to have an engine cover installed when the engine cover kit becomes available in April 2023. Monitor OASIS for updates
1 Associated Document
Manufacturer Communications
SSM 51239
2019-2022 Ranger – Illuminated MIL With Misfire DTCs/Water In Spark Plug Wells And/Or Corrosion On Ignition System Components
NHTSA ID Number: 10218921
Manufacturer Communication Number: SSM 51051
Summary
Some 2019-2022 Ranger vehicles (equipped without an engine appearance cover) 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 prevent reoccurrence, an engine appearance cover must be installed on the vehicle. Currently, the engine cover (SPN: L1MZ-6A949-A) is not available to order and a new engine cover kit is being released. Repair the vehicle by replacing suspect ignition system components and schedule an appointment with the customer to have an engine cover installed when the engine cover kit becomes available in November 2022. Monitor OASIS for updates
1 Associated Document
Manufacturer Communications
SSM 51051
2019-2022 Ranger – Illuminated MIL With Misfire DTCs/Water In Spark Plug Wells And/Or Corrosion On Ignition System Components
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TECHNICAL SERVICE BULLETIN Illuminated MIL With Misfires DTCs/Water In Spark Plug Wells And/Or Corrosion On Ignition System Components 23-2011 13 January 2023 Model: Ford 2019-2022 Ranger Issue: Some 2019-2022 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 to correct the condition on vehicles that meet all of the following criteria: • 2019-2022 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 Parts Service Part Number Quantity Description L1MZ-6A949-C 1 Engine Appearance Cover Kit XG-3-A As Needed Motorcraft® Silicone Brake Caliper Grease and Dielectric Compound As Needed indicates the amount of the part may vary and/or is not a whole number. Parts can be billed out as non- whole numbers, including less than 1. Warranty Status: Eligible under provisions of New Vehicle Limited Warranty (NVLW)/Emissions Warranty/Service Part Warranty (SPW)/Special Service Part (SSP)/Extended Service Plan (ESP) coverage. Limits/policies/prior approvals are not altered by a TSB. NVLW/Emissions Warranty/SPW/SSP/ESP coverage limits are determined by the identified causal part and verified using the OASIS part coverage tool. Labor Times Description 2019-2022 Ranger: Install Engine Cover Following The Service Procedure (Do Not Use With Any Other Labor Operations) Operation No. 232011A Time 0.3 Hrs. Repair/Claim Coding Causal Part: 21022A68 Condition Code: 68 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 the 2 engine appearance cover nuts and tighten to 10 Nm (89 lb-in). (Figure 4) Figure 4 © 2023 Ford Motor Company All rights reserved. NOTE: The information in Technical Service Bulletins is intended for use by trained, professional technicians with the knowledge, tools, and equipment to do the job properly and safely. It informs these technicians of conditions that may occur on some vehicles, or provides information that could assist in proper vehicle service. The procedures should not be performed by “do-it-yourselfers”. Do not assume that a condition described affects your car or truck. Contact a Ford or Lincoln dealership to determine whether the Bulletin applies to your vehicle. Warranty Policy and Extended Service Plan documentation determine Warranty and/or Extended Service Plan coverage unless stated otherwise in the TSB article. The information in this Technical Service Bulletin (TSB) was current at the time of printing. Ford Motor Company reserves the right de this information with updates. The most recent information is available through Ford Motor Company’s on-line technical resources.
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