Just purchased this truck a month ago in Canada, now display came up with check engine light error code 1 with red triangle, can't get fault codes to come up. Brought it to road service and they could not pull up the codes, now truck will barely pull my load display reflects no manifold pressure egr valve. I have new fuel filters put on no difference... Just starting out on the road again and need to minimize expenses and avoid a searching expedition.... Thanks
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