Misalignment of the accessory pulleys or a faulty drive belt tensioner may cause a chirping or squeaking sound while the engine is running. In If the replacing the belt tensioner does not correct the noise, the alternator pulley may require replacement.
Problems for specific Dodge Grand Caravan years:
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Most reported Dodge Grand Caravan problems
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.
Triggered by a short in the rear wiper motor/circuit (which causes a fuse to blow), the airbag warning light can illuminate erroneously.
AWD equipped vehicles can show a wide range of transmission problems, often caused by using the wrong-sized and/or mismatched tires. Be sure that all the tires are the same and that all four are replaced at the same time. Dodge recommends tire rotation every 7,500 miles.
A delay in the transaxle engagement (greater than three seconds) may have multiple causes, including a defective pump, defective internal lip seals, valve body components, park-reverse-neutral-drive lever switch, and the output speed sensor. Proper diagnoses will be necessary to determine the exact cause.
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.
Sometimes the vent windows' latch can pop open; if it will not stay closed or rattles, the latch assembly should be replaced.
The speedometer may become inoperative due to a failed vehicle speed sensor (VSS), . A failed sensor will require replacement.