Ford TSB #13987
1999 Ford Mustang
Affected Component: POWER TRAIN:AUTOMATIC TRANSMISSION
- TSB Document
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- Sorry, the NHTSA has not posted this TSB document yet.
You can still get the detailed info from Ford for this TSB. Call your local Ford dealer's service department & ask for a copy of TSB# 13987.
- Summary
- SOME VEHICLES EQUIPPED WITH 3.8L ENGINES MAY EXHIBIT ENGINE SPARK KNOCK ON HEAVY ACCELERATION WITH 87 OCTANE FUEL. HOT WEATHER AND LOWER OCTAINE FUEL CAN CONTRIBUTE TO THE CAUSE OF A SLIGHT KNOCK ON HEAVY ACCELERATION. THOUGH NO DAMAGE TO THE ENGINE WILL OCCUR, SOME CUSTOMERS REPORT THAT THE SOUND IS NOT DESIRABLE. *TT