Muffler - Unnecessary Replacement

83ford16 Article No. 83-11-11


EXHAUST - MUFFLER - POWER LOW - UNNECESSARY MUFFLER REPLACEMENT


LIGHT TRUCKS 1982 AND LATER LIGHT TRUCKS

Mufflers are being replaced on leaded fuel vehicles in an effort to resolve concerns of "lack of power" or poor performance", apparently in the belief that a plugged muffler is the cause. Although plugging with lead deposits was possible on certain models prior to the 1982 Model Year, muffler modifications incorporated on 1982 and later models make this an unlikely cause of the concern. Thus, replacing mufflers on the newer model vehicles normally will not satisfy the customer. Prior to replacing any muffler believed to be restricted, a vacuum check as described in Section 26-01 of the Light Truck Shop Manual should be performed.

OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: "INFORMATION ONLY"