Warning sound like emergency brake is engaged sounded while driving. Brake is not engaged and no lights illuminated. Oil pressure, temperature and battery voltage all normal and half a tank of gas. Stopped at light, sound went off but began again about a half mile later and stopped again.
SOURCE: ABS light and brake light in dash staying on
you can do that only will get fix if there is no actual problems with the hydraulic system sounds like a pressure diffrential valve problem but make sure sometime the radio might ask for factory code after the battery is disconnect.
good luck hope this help.
SOURCE: Oil pressure light comes on after driving on highway for 10 miles
Sounds like your sending unit sensor - if it was your pump going out, your engine would be history by now. Rule of thumb, if your oil check light ever comes on, it's usually too late to remedy the problem. You have a major issue, but since you've obviousely drove it quite a bit since then and it still hasn't seized up, I'm guessing you're ok...for now. Since you took it to a shop and they said you're ok, I'm assuming they checked your level and visually checked for leaks and found nothing. Either, you've got somethijng partially blocking your pick-up tube for the pump which is in your oil pan, or a electrical issue with the sensor. I would start by having someone check the sensor out and go from there...good luck.
SOURCE: oil pressure light on and wont start
Well I had the same problem and wow was I surprised man. I have a code machine that plugs into my car and tells me what wrong with it then I fix it. It read that I had a misfire #1 so that means my spark plug is dirty or something like that. When I took off the spark plug it was smashed in that was a good sign.. I called a mechanic friend of mine and he said that my head and piston were damaged but would not really know unless he took it apart. What he said was true and cost me a great deal of money..!!!! Now searching the web I have found that there many jeep liberty with the same problem just different spark plug locations so I wonder if Jeep knows of this issue but will not acknowledge it.. If you need more information please email me at [email protected]
Check out this link regarding your issue..!!
SOURCE: 2004 Grand Cherokee: oil pressure fluctuates
if you know for certain that the sending unit is correct and the guage is accurate, then yiu may have big problems.....while the engine is running open the oil filler hole.. is everything wet with oil? or does it look dry or just a little lubed? you can allways install an aftermarket oil pressure guage(crappy tire) if you get the same results with that then you may have a week oil pump....worst case scenerio... need an engine rebuild as the moter may have wear issues.does the pressure slowly drop as the motor warms up? at idle ? does it jump up when you step on the gas?
SOURCE: I have a 2004 Jeep Liberty and i was driving and
sounds like you have a defective vehicle speed sensor, have the dealer test the system, the sensor will set a fault code in the control module memory
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The EBCM detects a low brake fluid condition and sends a class 2 message to the IPC.
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The IPC performs the bulb check.
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An ABS-disabling malfunction also disables dynamic rear proportioning (DRP).
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Was the seatbelt light flashing? Did you happen to have something of fair weight other than a passenger in one of the other seats?
Sounds like the TPMS is warning you of a tire low.
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