Dodge Repair Questions? Ask a Mechanic for Answers ASAP
hello . how are you ? The problem you are having is most likely one of 3 things . I will start with the A/C condensor cooling fan . if the a/c condensor fan does not come on when the air conditioning is on the system pressures on the a/c high side can climb to an excessively high pressure creating a huge " mechanical " load on the drive belt causing it load the engine ( explaining the lack of speed ) and also cause the belt to slip ( causing the noise ) . The noise could also be coming from a slipping a/c compressor front " shoe " which would also create the noise , but is not likely to cause reduced speed . thirdly it can be a weak belt tensioner and worn belt , this would also create the noise , but not likely the loss of speed . Check the front " shoe " on the a/c compressor to see if it looks as if it has been hot , inspect it for heat discoloration .
I hope that has helped . Thanks , Kevin .
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