1991 MACK CH RECALL - #94V032000
RECALL FOR VEHICLE SPEED CONTROL
FUEL INJECTION SYSTEM RECONFIGURATION TO COMPLY WITH ENGINE EMISSION STANDARDS CAUSE HIGHER ENGINE VIBRATION LEVELS WHICH LEAD TO EARLY WEAR AND COMPLETE FAILURE OF THE SECONDARY THROTTLE RETURN MECHANISM.
Information provided by the National Highway Traffic Safety Administration.
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| Vehicle |
1991 MACK CH |
|
| Manufacturer |
MACK TRUCKS, INCORPORATED |
| Manufactured between |
7/1/1987 - 7/1/1992 |
| Recalled on |
3/1/1994 |
| Influenced by |
OFFICE OF DEFECTS INVESTIGATION |
| Owners Notified on |
5/27/1994 |
| # Affected |
39,777 |
| Recalled for |
VEHICLE SPEED CONTROL |
|
|
| Description |
FUEL INJECTION SYSTEM RECONFIGURATION TO COMPLY WITH ENGINE EMISSION STANDARDS CAUSE HIGHER ENGINE VIBRATION LEVELS WHICH LEAD TO EARLY WEAR AND COMPLETE FAILURE OF THE SECONDARY THROTTLE RETURN MECHANISM. |
| Consequences |
IN THE EVENT THE PRIMARY THROTTLE RETURN FAILS, FAILURE OF THE SECONDARY THROTTLE RETURN SYSTEM WOULD NOT PROVIDE PROTECTION AGAINST LOSS OF THROTTLE CONTROL. |
| Corrective action |
A NEW PRODUCTION SECONDARY THROTTLE RETURN SYSTEM CONFIGURATION WILL BE INSTALLED. |
| Notes |
SYSTEM: FUEL; FUEL PUMP.VEHICLE DESCRIPTION: CLASS 8 TRUCKS EQUIPPED WITH E6 AND E7 ENGINES WITH ROBERT BOSCH P7100 MECHANICALLY-GOVERNED FUEL INJECTION PUMPS.NOTE: IF YOUR VEHICLE IS PRESENTED TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND THE REMEDY IS NOT PROVIDED WITHIN A REASONABLE TIME AND FREE OF CHARGE OR THE REMEDY DOES NOT CORRECT THE DEFECT OR NONCOMPLIANCE, PLEASE CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-800-424-9393. |
| See also |
1991 MACK CH Recall for SEAT BELTS, FRONT, ANCHORAGE
1991 MACK CH Recall for ENGINE AND ENGINE COOLING, COOLING SYSTEM, FAN
1991 MACK CH Recall for POWER TRAIN, DRIVELINE, CENTER SUPPORT BEARING
1991 MACK CH Recall for TRAILER HITCHES, FIFTH WHEEL ASSEMBLY
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