Question about 2008 Jeep Patriot Sport
The irregularity of the errors suggest a CPU program problem.( corrupted) I would try resetting the CPU using a code reader. ( Local auto spares shop do it for free)Check that the battery posts and terminals are shiny clean and tight
Posted on Feb 11, 2014
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Posted on Jan 02, 2017
SOURCE: I HAVE A NEW JEEP
Don't mess with it!!!!! Your new vehicle has a warranty. Get back to the dealer ASAP and don't take anything apart. You paid good money .... let them tear their hair out.....that's what they get paid for!!!!
Posted on Dec 11, 2008
It could also be the rheostat that controls it. it's on the fan plenum under the dash. inserts into the plastic plenun.
Posted on Mar 29, 2009
Sounds like a serious short and or blown fuse. Check battery voltage. Move on to underhood fuse block. Check all fuses. Move on to cabin fuse block. Check all fuses. Check fuel cut-off switch. Reset switch. If you still have the problem and the battery is good than you have a short in your starter, alternator , or fuel pump. I won't go into lighting cause I figure you can tell a bad bulb from a good one. If your battery voltage is 12v + with the engine off your ok. If you can start the engine, check the voltage at the battery again, it should now be around 14v. If not , go to the positive terminal on your alternator and check the voltage there. If you read 14+ at the alternator and not at the battery , then the wiring in that circuit needs to be changed. A quick alternator test is to disconnect the negative terminal of your battery while the engine is running. If the car dies then your alt is bad. If you read lower than 12v on your battery. disconnect it, add water unless its maintenance free., charge it on a charger or preferably get a new one. Go and feel your starter for excessive heat. A short will also heat up your negative battery terminal
Posted on Jun 28, 2009
I'm likely to forget a few but generally there is one from the battery to the fender nearest to it, one strap from the engine to the firewall and usually at least two near the computer. generally they are smaller wires with a star washer attached to the fender etc, the engine/firewall strap is generally a woven exposed metal strap. connected between the back of the engine and firewall.Only one that isn't obvious would be under dash. i generally run a wire to the dash frame right from the battery and don't even bother looking for the real ground points.(I actually run a 10gauge or heavier wire all the way around and connect everything to it on all my vehicles, then, never need to worry about it again.) I can't say for sure if this will fix the problem but it will eliminate another variable from the mix.
Posted on Nov 17, 2009
Sounds like you need a blower motor resistor located down under dash on pass side next to blower motor. This is a comon problem and I have changed many of them. thats just the fan speed problem. Ive seen the blend doors break easily on those jeeps. thats inside the heaer core box and moves the flap from hot air to cold air. If it is stuck halfway -or mostly to cold- you may only get luke warm air. If they had the heater core out-maybe they possibly broke it.
Posted on Dec 04, 2009
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