Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD1990RANGER 4WD L4-140 2.3L SOHCREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTIGNITION SYSTEMTECHNICAL SERVICE BULLETINSALL TECHNICAL SERVICE BULLETINSCAMPAIGN - SPARK PLUG REPLACEMENT LABELOWNER LETTER
1990 Ford Ranger 4WD L4-140 2.3L SOHC
Owner Letter
1990 Ford Ranger 4WD L4-140 2.3L SOHCSECTION Owner Letter
ENCLOSED WITH THIS LETTER IS A SERVICE REMINDER LABEL THAT IS IMPORTANT TO THE SERVICING FOR THE RANGER DESCRIBED BELOW. PLEASE DO NOT THROW THE LABEL OR THIS LETTER AWAY.
SERIAL NUMBER OF VEHICLE
DESCRIPTION OF VEHICLE
NAME OF OWNER
ADDRESS OF OWNER
CITY OF OWNER
March, 1995
DEAR OWNER:
REASON FOR THIS LETTER
Ford Motor Company has determined that a Service Reminder label should be placed in the engine compartment of your Ranger. The information on the label is important to the servicing of all spark plugs (a total of eight plugs) at the appropriate service intervals.
LABEL PROVIDED WITH THIS LETTER
Enclosed with this letter is a label. Please read the instructions on the reverse side of this letter and install the label on your Ranger.
CONTACT YOUR DEALER
If you desire, a dealer will attach the label. Be sure you have this letter and the label when you visit the dealer for this service.
ATTACHING THE LABEL
Read the instructions in this bulletin.
PLEASE REMEMBER
It is important that the label be placed on your truck for proper spark plug servicing.
SERIAL NUMBER OF VEHICLE
DESCRIPTION OF VEHICLE
NAME OF OWNER
ADDRESS OF OWNER
CITY OF OWNER
March, 1995
DEAR OWNER:
REASON FOR THIS LETTER
Ford Motor Company has determined that a Service Reminder label should be placed in the engine compartment of your Ranger. The information on the label is important to the servicing of all spark plugs (a total of eight plugs) at the appropriate service intervals.
LABEL PROVIDED WITH THIS LETTER
Enclosed with this letter is a label. Please read the instructions on the reverse side of this letter and install the label on your Ranger.
CONTACT YOUR DEALER
If you desire, a dealer will attach the label. Be sure you have this letter and the label when you visit the dealer for this service.
ATTACHING THE LABEL
Read the instructions in this bulletin.
PLEASE REMEMBER
It is important that the label be placed on your truck for proper spark plug servicing.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.