20 Most Recent 2004 Jeep Wrangler - Page 5 Questions & Answers

Was it getting cold before the compressor was changed ?Could be a list of things including low on freon, restriction in the lines, cooling fan, restriction in air flow thru the condenser, etc.

could be Trouble code P1686 means: A/T FI Signal B Low Input.

Check fuel pressure, the fuel pressure should be about 49psi ( + or - 5 psi).

P0443 trouble code symptoms could be just an malfunction indicator lamp (MIL) illumination. There may be no drivability problems at all. But, it's also possible to have a lean condition or a rough running engine if the purge valve is stuck open. Usually though, these symptoms are accompanied by other EVAP codes. Another symptom may be excessive pressure in the gas tank in the form of a "whooshing" sound when the cap is removed, indicating a purge valve that isn't working at all or stuck closed.

how to fix follow these steps 1. Using a scan tool, command the purge solenoid to activate. Listen or feel for a clicking coming from the purge solenoid. It should click once, or on some models it may click repeatedly.

2. If it doesn't click with scan tool activation, unplug the connector and examing the solenoid and connector for damage, water, etc. Then check for battery voltage on the feed wire with the key on. If you have battery voltage, then ground the control side manually using a jumper wire and see if the valve clicks. If it does, then you know the solenoid is working properly but there is a problem with the control circuit. If it doesn't click when you manually ground it, replace the purge solenoid.

3. To check for a problem on the control circuit (if the solenoid tests okay and you have voltage to the solenoid) plug the solenoid back in and remove the control circuit (ground) wire from the ECM connector (If you're unsure how to do this, do not attempt). With the ground wire removed from the ECM, turn the key on and then manually ground the Purge valve control wire. The solenoid should click. If it does, then you know there is no problem with the control wire to the solenoid and there is a problem with the ECM purge solenoid driver circuit in the ECM. You'll need a new ECM. However if it doesn't click, then there must be an open in the wiring between the ECM and and the solenoid. You must find it and repair it.

po733- gear 3 ratio incorrect this is how to fix. You can try replacing the shift solenoids inside the transmission as long as the trans fluid is nice and clean looking it will be nice red color . If the trans fluid is dark or burnt looking , it maybe time for a new ******

po 870 refers to transmission fluid pressure- check fluid level of trans while parked with engine running and the jeep level.- if level is ok- might be time to have filter and fluid changed

Two ways you can check is to listen close to the gas tank while some one turns the switch on to see if you can hear the fuel pump kick on and another way is to check for pressure at the bleeder valve on the fuel rail.

if they light up but do not flash then change the hazard warning light switch

Have you checked your ignition coil and starter? If you have good battery and you can hear the starter turning but the engine itself wont turn over than you have a possible frozen engine? Check the block to see if it cracked? Check to see if you have an oil leak from the head gasket? Also if it has overheated this will also cause the engine head gasket to blow and seize up.

sound like you got short some where bare wire touching metal
Check all your fuses to

check to make sure the front one is working..on that side (blinker and other) this could be the problem