Top 20 2001 Dodge Grand Caravan - Page 7 Questions & Answers

Sounds like a bad connection at the gas tank harness.

I agree the actual problem may be the fuel pump going out. The other codes may have been symptoms of the actual problem. And when you replace a component you often times have to go thru a re-learn process which requires a scanner to access the computer. Same thing when you disconnect the battery and the computer looses memory. It can take a very long time for the computer to relearn without the scanner.I would have someone check the fuel pressure with a gauge, and replace the fuel filter if you have not yet done so.

I have an 07 model that acts similarly but only after I fill the gas tank to the top. The problem I have is related to the fact that the vapor canister on top of the tank pulls raw gas instead of vapor in for a brief period and the motor goes into convulsions for 10 seconds or so until the liquid is run out. If this problem is similar to yours, try not filling the tank all the way to the top and see what happens. You may have a problem with the connections to the fuel pump that should be checked since you just replaced it. Check for a leak.

Then there was no reason to replace the compressorunless it broke down & spread debris into the systemJust poor or no diagnosing of the issueYou have high side pressures that caused the valve to releaseNeed to study why it happens & where the system blockage isDid the first compressor burn up & trash the system?If so then any competant shop know all the componets haveto come out & be flushed or maybe replacedI would say you have a $1500 job just for starters to redo thejob correctly now 3 compressors went on for no reason

code p0405 refers to exhaust gas recirculation(EGR) valve position sensor A-low output.--- causes --wiring shorted to ground--EGR valve position sensor--- ECM would go for the EGR sensor. Use only genuine parts as after market are not always compatible with CPU in the car.

Both sides or just one ?

If the system is fully charged with freon, it could be a blend door problem under the dash.

check you MAP sensor.

P0405 Exhaust Gas Recirculation (EGR) Position Sensor Circuit Low VoltageThere may be no symptoms of a P0404 DTC other than the MIL (malfunction indicator lamp) or check engine light. However, Exhaust Gas Recirculation systems are inherently problematic due to carbon buildup in the intake manifold, etc. This normal buildup can lodge in an EGR valve, holding it open when it should be closed. If this is the case, the engine may idle rough, or not at all. If the valve has failed and is NOT opening, then symptoms would be higher combustion temps and as a result, higher Nox emissions. But the latter symptoms aren't going to be noticeable to a driver.Possible Causes:

• Short to ground in EGR signal or Reference circuits
• Short to voltage in EGR ground or signal circuits
• Bad EGR valve
• Bad PCM wiring issues due to chafing or loose terminals

Have a look at this. http://dodgeforum.com/forum/dodge-caravan/337664-instrument-cluster-repair.html

Testing the fuel pump electrical circuit should be done , voltage drop testing . Plus fuel pump pressure an flow testing , scan engine data parameters . Testing Electric Fuel Pump Problems with Voltage Drop Test 048 Engine Hard to Start or No Start Scan Data for Starting Problems

If the problem is a lack of air flow from the vents, and you suspect the blower motor is not running at times, you would need to test the blower relay and blower motor for power and ground when it is not working.

Hi Jillian,Assuming it is not related to improper servicing, it could simply be a LOW coolant level, stuck thermostat, loose/failed drive belt or a failed water pump. The ease & expense of repair increases from minimal amount for low coolant level to the most costly being the failed water pump. There are other possible causes including clogged radiator, hose, etc. but those problems don't happen as frequently as those I listed.Reghardless of cause, you should NOT drive the vehicle while in an overheated condition as this can cause a *very* expensive engine repair.Good luck!

For which circuit ?

there is a fuse under the hood in the main fuse box there are two fuse for each head lights.

Its the resistor behind the glove box just push both tabs in on either side of the glove box it will flip down you will see a resistor inside with two screws holding it in pull the screws out and replace it

Click here Dottie to see your code,These are all injector codes. Since it is more than one injector can be a problem with the asd relay which supplies voltage to the injectors or the powertrain control module (PCM) which controls the ground to the injectors. I would start by replacing the asd relay and checking the wires from the relay to the injectors and then the wiring from the injectors to the PCM and if all checks good then replace the PCM

A SMALL FLAT SCREWDRIVER AND PRESS EJECT AT THE SAME TIME ,MOST LIKELY IT ATE YOUR TAPE ,IF THAT DOESNT WORK TAKE IT OFF THE AND OPEN IT AND THEN REMOVE IT

Have you ever had any work done in that area? Check all fuses and the back side of the fuse cover points you to what each fuse does. If you've had damage to the dash it is quite likely where your problem is.

Do you have exhaust leaks before the exhaust converter?Do you have a blocked exhaust converter?Did you test the upstream O2 Sensors?Did you check fuel pressure at the motor?Are the wires on correctly?Is the EGR Valve stuck open