my 98 jeep wranglers heater will not work. all it does is blow cold air even after the engine heates up. what do i do?
Try this disconnect the heater hoses from the heater core use a hose to backflush the core. Then reconnect and try again.
Posted on Oct 18, 2008
i need to know the location of the Torque Converter Clutch Solenoid on
a 1998 Jeep wrangler, check engine light came on, had it checked and
turned off, and the tranny (torque converter) went out before i got it hm, is this a norm
caused by the soleniod, or could it be something more,
the jeep is a 4.0, with the 3 speed automatic tranny
Your transmission should still work if the solenoid goes bad. It will just shift funny
Posted on Jan 30, 2009
i have changed the headlight switch, dimmer turn signal, fuse, bulbs and still can not get the low beams working. it will turn on hi beams for passing but will not stay on either. turn signals, running lights, tail lights, and dash lights all work but not headlights. please help
I would check your headlight relay switch that is located in your steering colum
Posted on May 19, 2009
I have a 2000 Jeep Wrangler and the oil pressure gauge will start to drop after running for about 20 minutes and then drops really low when I am sitting at red lights and in traffic
oil pump going, or the crank bearings worn.
are there any noises that appear when oil pressure drops?
check sensor
Posted on Jul 01, 2009
when replacing the thermostat on my 98 jeep wrangler (4.0 6 cyl.) does the thermostat go in first, then the gasket or the other way around?
Check out the diagram:
The removal of the thermostat from its housing on the 4.0L engine
To install:
CAUTION
Tightening the thermostat housing unevenly or with the thermostat out of its recess may result in a cracked housing.
WARNING
Do not loosen radiator drain **** with system hot and pressurized. Serious burns from coolant can occur.
NOTE
Do not waste reusable coolant. If solution is clean, drain coolant into a clean container for reuse. If thermostat is being replaced, be sure that replacement is specified thermostat for vehicle model and engine type.
Posted on Dec 06, 2009
I need a diagram for the under hood fuse box. More importantly the specific 20 amp fuse labeled F21. What is it for. I have a 1998 jeep wrangler 4.0 4wd.
Are you sure that this is for 20AMP, according with the repair manual, the position 20 in the Power Distribution Center if for Power Motor ABS Pump, and is 10AMP.
Verify it..
Posted on Mar 17, 2010
Need routing diagram for serpentine belt - '98 Jeep Wrangler, straight six with and without A/C
Click of the following direct, Free Link. It has several Serpentine Diagrams, including the one for your 1998 Jeep Wrangler 4.0L In-Line 6-Cylinders based upon your Engine Options (AC/No AC, Power Steering/No Power Steering, etc.).
The Link Page ALSO has the 2.5L In-Line 4-Cylinder Serpentine Belt Diagrams with their various engine options.
Included are the with AC / without AC Routing.
Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!
http://www.2carpros.com/car_repair_information/year/1998/make/jeep/model/wrangler/1998_jeep_wrangler_drive_belt_routing_diagram.htm
Posted on Apr 14, 2010
how do i fix my high idle problem on jeep wrangler
a quick fix is to look under the hood, look for where the intake meets the throttle body, you will see a bolt which can be adjusted. When you start to screw it out, your idle will decrease...
Posted on Apr 25, 2010
po123 throttle position sensor voltage high
To diagnose Diagnostic Test Code (DTC) P0123, you will need a scan tool that can read computer data and a digital Volt/Ohm meter.
Check the sensor data in the computer and see if it is showing TPS voltage higher than 4.5 volts. If it does not, then you may have a computer that is malfunctioning internally.
If it is reading the TPS voltage higher than4.5 volts, then you need to back-probe the TPS signal return circuit and verify the actual voltage with the digital Volt/Ohm meter with the ignition in the ON position.. If the voltage is higher than 4.5 volts and the meter reading agrees with the computer data, then this is not an internal computer error - (the computer is telling you the truth)
Then you should check the 5 volt reference voltage at the sensor connector with the connector disconnected from the sensor with the ignition in the ON position. If the reference voltage is higher than 5.3 volts, then the reference circuit is shorted to power. (possibly shorted to another wire that is SUPPOSED to have higher voltage)
If the reference voltage is correct, check the sensor ground. With the sensor connected and the ignition in the ON position, back-probe the sensor ground wire at the TPS connector and connect the POSITIVE lead of the Volt/Ohm meter to the back probing pin and the NEGATIVE lead to battery ground. Put the meter on a one volt scale if it is equipped with one. Otherwise, put it on the lowest scale possible. You should have a reading of 200 MilliVolts or less (preferably ZERO). If the voltage reading here is more than 200 millivolts, your problem is being caused by a bad ground circuit.
If all of the above checks out OK, replace the TPS.
See wiring diagram for a better understanding of what we are trying to do here.
Posted on Aug 20, 2011
TJ 4.0l. oil pan bolt pattern or layout for for the bolts
engine pan or trans pan,(guess at engine)
what's up doc.?
what is the job.
lost the gasket?
lost the bolts.?
not sure what going on here.
buy a new gasket from Felpro and bingo? there be a pattern
Posted on May 22, 2016
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