A bad ground on the left frame rail can cause intermittent operation of the radiator cooling fans or AC compressor.
Problems for specific Dodge Grand Caravan years:
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Newest reported Dodge Grand Caravan problems
Due to a lack of lubrication, the AC compressor can fail. The AC compressor warranty was extended to seven years or 70,000 miles.
While turning in either direction during low speed parking lot maneuvers, if a creaking, squawking, squeaking, grinding, or groaning sound is heard from the front strut area, locate the front strut dust boot and rotate the dust boot side to side. If the sound is present, applying lubricant to the jounce bumper (bump stop) of both front struts can help with the noise.
When braking during low speeds (under 10 MPH), the brake pedal may vibrate and the ABS hydraulic unit may cause a rumbling noise. This is caused by a momentary loss of the wheel speed signal to the ABS controller. Adjusting or replacing the wheel speed sensor will commonly fix this problem.
If the heater is on and no heat is felt from the right side dash vents, there may be a problem with the blend air door shaft; a revised part is available to address this concern.
V6 engines may experience surging while driving. The condition is more noticeable between 40 and 50 MPH while accelerating up a hill/slight incline. Replacing the powertrain control module (PCM) and updating the transmission control module (TCM) software may be required.
Hood misalignment, cowl cover misalignment, wiper module drain tube(s), and/or the lower plenum drain hose may cause the HVAC housing to leak water onto the passenger side floor. Diagnoses will be required to confirm the location of a water leak in the front passenger area.
A "tapping plate cage" on the driver side frame rail may cause a squeak or tick noise while driving, this is often misdiagnosed as a suspension problem. The tapping plate is a threaded plate which accepts one of the front sub-frame mounting bolts. The "cage" of the threaded plate may be touching the frame rail causing noise as the vehicle is driven. "Adjusting" the rear tab on the tapping plate cage so it no longer is touching the frame should eliminate this noise.
An oil leak from the oil filter adapter may be evident. Dodge has made a revised oil filter adapter is available.
Spark plug tube seals fail, causing the tubes to fill with engine oil and the engine to misfire. As a result, the engine may run poorly and fuel economy can suffer.
The rear lift gate support (prop) attaching bolts may break, causing the lift gate to fall unexpectedly. Thorough inspection of the bolts is required; if the support washers are loose, the supports need to be replaced.