The throttle position sensor (TPS) may fail causing intermittent drivability problems like hard starting, stalling, and/or hesitation when accelerating. A failed TPS will require replacement, proper diagnoses should always be performed before replacing any parts.
Resources for the Repair and Maintenance of your 1993 Jeep Wrangler
1993 Jeep Wrangler
1993 Jeep Wrangler Problems
A ticking type noise may be noted from the engine area due to an exhaust manifold that has cracked where the pipes are welded; cracked manifolds should be replaced.
Engine oil leaks from the valve cover gasket, oil pan gasket and timing cover gasket are common.
Due to warped front brake rotors or variations in the thickness of the rotors, brake pulsations may develop. The best method to reduce pulsations is to use an "On the Car" brake lathe (as long as the rotors are suitable for turning). "On the Car" equipment can correct variations (or "runout") in the rotor surfaces because it also corrects variations in other components (e.g. the hub).
Some models are susceptible to rear main oil seal failures in dirty or dusty conditions. As dirt and dust collect on the oil seal, the abrasion wears through the sealing surface. A spacer is used between the bell housing and engine that has a small slot in the 12 o'clock position. Filling this slot with RTV silicone and cleaning the seal area can help prevent damage to the seal.
1993 Jeep Wrangler Recalls (Recent)
Summary: BESTOP AFTERMARKET REAR SHELL ROOF RACKS,MANUFACTURED BETWEEN APRIL 27 AND MAY 20, 2004, DESIGNED FOR USE WITH THE BESTOP HARDTOP MADE FOR THE 1986-1995 AND 1997-2003 JEEP WRANGLER. THE COCKPIT COVER MAY NOT STAY LATCHED TO THE ROOF RACK BECAUSE THE LATCH BRACKET MISPOSITIONS THE ROTARY LATCH TO THE COCKPIT COVER. AS A RESULT, THE COCKPIT COVER MAY NOT STAY LATCHED TO THE ROOF RACK AND COULD SEPARATE FROM THE ROOF RACK. THIS RECALL ONLY PERTAINS TO AFTERMARKET REAR SHELL ROOF RACKS AND HAS NO RELATION TO ANY ORIGINAL EQUIPMENT INSTALLED ON JEEP WRANGLER VEHICLES BY DAIMLERCHRYSLER.Learn more »
Summary: ON CERTAIN SPORT UTILITY VEHICLES EQUIPPED WITH MANUAL TRANSMISSIONS, THE PARKING BRAKE CAN SELF-RELEASE WITHOUT WARNING.Learn more »
Summary: SALT CORROSION PRODUCTS BETWEEN THE STARTER SOLENOID WIRE AND THE ADJACENT BATTERY FEED IN THE BULKHEAD CONNECTOR MAY SHORT THESE CONNECTIONS, CAUSING THE CIRCUIT TO BYPASS THE IGNITION KEY CONTROL OF THE STARTER MOTOR SOLENOID. THE CAR CAN START WITHOUT THE STARTER SEQUENCE BEING INITIATED BY THE IGNITION KEY IN THE IGNITION LOCK.Learn more »
1993 Jeep Wrangler Questions and Answers
my oil pressure gauge has been showing mid range at 40---it suddenly shows almost zero to 10---no engine noise or misses in running-is this a gauge problem?
My Jeep (1993 Wrangler) has been not starting throughout the week. It will start fine in the morning, then again on lunch, but then won't start until the wires and coil are played with. I thin...
I have a 93 Jeep wrangler that has a Dana 44, 4:10 ratio. While driving one day the spider gears in the differential broke. I opened the dif and cleaned out all the metal I tried to rotate the c...
I recently replaced my clutch at only 36,000 miles and it continued to work intermittenly. Now I am told I need to replace the hydraulic component of the clutch. Shouldn't this have been don...