GM might owe you cash. The automaker recently agreed to a proposed settlement over faulty CP4 fuel pumps used in these trucks. The settlement covers owners who bought their trucks from GM-authorized ...

If you have a Duramax diesel engine under the hood of your Chevy or GMC truck ... who paid out of pocket to repair or replace the CP4 fuel pumps that were used on 6.6-liter Duramax diesel V8 ...

People who purchased select models of Chevrolet and GMC trucks may be eligible for payments of up to $12,700 as part of a $35 million settlement involving defective fuel injector pumps.