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 MANUALSJEEP1991CHEROKEE 2WD L4-150 2.5L VIN P MFIREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGSERVICE AND REPAIROIL LEVEL CHECKYORK COMPRESSOR
1991 Jeep Cherokee 2WD L4-150 2.5L VIN P MFI
York Compressor
1991 Jeep Cherokee 2WD L4-150 2.5L VIN P MFISECTION York Compressor
Compressor oil level should be checked whenever system is discharged for service part replacement or after rapid loss of refrigerant.
1. Isolate compressor as outlined previously.
2. Slowly loosen crankcase oil check plug to relieve internal pressures, then after pressure is released, remove plug.
3. Hold dipstick, tool No. J-29642-12 in a vertical position, then insert into check plug opening until dipstick bottoms in compressor. If necessary, slightly rotate crankshaft to clear dipstick path.
4. Remove dipstick and count number of dipstick increments covered with oil.
5. When properly filled, compressor should contain 7-10 increments of oil.
6. Add or remove oil as necessary.
1. Isolate compressor as outlined previously.
2. Slowly loosen crankcase oil check plug to relieve internal pressures, then after pressure is released, remove plug.
Fig. 5 Compressor Oil Level Check. York Compressor:
3. Hold dipstick, tool No. J-29642-12 in a vertical position, then insert into check plug opening until dipstick bottoms in compressor. If necessary, slightly rotate crankshaft to clear dipstick path.
4. Remove dipstick and count number of dipstick increments covered with oil.
5. When properly filled, compressor should contain 7-10 increments of oil.
6. Add or remove oil as necessary.
RENDER: 1.0x
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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.