- The problem
- On certain chassis built with lng engines, the nexgen lng tank's primary and secondary relief valves could fail to open and relieve tank pressure.
- The risk
- This could cause ice buildup on the discharge side of the primary and secondary pressure system allowing the relief system to freeze and become blocked resulting in over pressurization of the lng tanks creating the risk of catastrophic tank rupture which could cause serious injury or death.
- The fix
- Dealers will retrofit the lng tanks with a new primary relief valve pipe away tube and a new ventilated shroud. The recall began april 6, 2004. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact mack at 1-610-709-3337.
Vehicle safety record
1999 Mack CH Problems, complaints & recalls
No owner complaints about the 1999 Mack CH have been filed with NHTSA. It is covered by 7 recalls, the latest in April 2004 for the pressure relief devices.
NHTSA data checked
DMore problems than a typical CH year, for its age
- Complaints
- 0
- Recalls
- 7
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
1999 Mack CH recalls 7
Recall repairs are free. Your dealer fixes them whether or not you bought the car there - check your VIN at nhtsa.gov/recalls to see if yours is done. What to do
- The problem
- On certain heavytrucks equipped with truck hub units manufactured by skf exclusively for use on arvinmeritor's ff98x series non-drive steer axles, the hub unit bearings can wear prematurely.
- The risk
- Seizure of the bearings can cause wheel separation or wheel end fire.
- The fix
- Dealers will replace all front axle hubs. Owner notification began on oactober 14, 2003. Customers will be informed of parts availability by october 3, 2003. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact mack at 610-709-3337.
- The problem
- On some heavy duty class 8 vehicles equipped with arvinmeritor axle assemblies which may have been manufactured with trw model 20edl ball sockets, the tie rod ball-socket bearings have a below specification case depth and/or hardness which can lead to premature wear out of the socket in some applications.
- The risk
- If this condition occurs, the driver can lose steering control, possibly resulting in a vehicle crash.
- The fix
- Dealers will replace the ball socket assemblies. This campaign will supersede nhtsa recall nos. 01V-140-005 (mack sc0270) and 00v-246-103 (mack sc0262). Owner notification began december 27, 2002. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact mack at 610-709-3337.
- The problem
- Vehicle description: heavy duty trucks equipped with drag link assemblies containing 24-dl model ball sockets and manufactured by trw. Certain of the tie rod ball-socket bearings have a below-specification case depth and/or hardness, which can lead to premature wear of the socket.
- The risk
- If this condition occurs, the driver can lose partial control of the right front wheel, possibly resulting in a crash.
- The fix
- Dealers will replace the defective drag links. Owner/distributor notification began august 30, 2001. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact mack at 1-610-709-3011 or trw customer service at 1-866-280-3287.
- The problem
- Vehicle description: heavy duty trucks equipped with trw tie rod ends on certain meritor axles. The tie rod and drag link ball stud ends contain bearings that are below the specified case depth and/or hardness.
- The risk
- This can lead to premature wear with possible separation of the ball stud from the socket, increasing the risk of loss of control of the vehicle.
- The fix
- Dealers will remove and replace all affected tie rods and drag links with different designed ends.
- The problem
- Vehicle description: class 8 trucks equipped with felsted electronic accelerator pedals. The return springs can break on the accelerator pedals that are equipped with stainless steel or electroplated wire return springs.
- The risk
- This condition could cause the pedal to go to full throttle if both return springs break, increasing the risk of a crash.
- The fix
- Replacement accelerator pedals equipped with return springs manufactured of music wire with one additional coil on each spring and with an organic coating, eliminating electroplating will be installed.
- The problem
- Vehicle description: heavy duty trucks built with bendix air abs with an ec-17 1030r electronic control unit (ecu), there have been reports of unwanted abs activation at low speeds caused by 1) chafed abs wheel speed sensor wires on rotating parts or 2) a damaged component at the wheel end that generates a certain type of erratic sensor signal.
- The risk
- This condition could cause the abs ecu to exhaust the air at the air brake modulators for one or more of the wheels. This could result in extended braking distances and a possible crash.
- The fix
- DEALERS WILL REPLACE THE ABS ECU.
What owners say
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No complaints about the 1999 Mack CH yet
No owner has filed a complaint about this vehicle with NHTSA. If yours has a problem, share it here and report it to NHTSA.
Mack CH: every year compared
All CH years1999 Mack CH vs rivals
| Vehicle | Complaints | Recalls | Grade | |
|---|---|---|---|---|
| 1999 Mack CH | 0 | 7 | D | |
| 1999 Mack Mack | 2 | 0 | A | Compare |
| 1999 Mack MR | 1 | 5 | F | Compare |
| 1999 Mack CL | 1 | 6 | F | Compare |
More sales usually means more complaints, so compare similar vehicles of the same year. The grade compares each vehicle with its own model's other years.
Questions about the 1999 Mack CH
Does the 1999 Mack CH have any recalls?
Yes - NHTSA lists 7 recalls for the 1999 Mack CH: pressure relief devices (April 2004); hub (June 2003); tie rod assembly (August 2002); connection (March 2001) and more. Recall repairs are free at any authorized dealer. Enter your VIN at nhtsa.gov/recalls to see whether yours has been fixed.
How many complaints has the 1999 Mack CH had?
None have been filed with NHTSA so far.
Is the 1999 Mack CH a reliable vehicle?
Its Safety Index is 38 out of 100 (grade D: more problems than a typical Mack CH year, for its age). The index weighs complaints, crashes, fires, injuries, deaths and recalls against how long the vehicle has been on the road, compared with the same model's other years. It is not a measure of every repair - read the complaints and owner experiences, and have any used vehicle inspected before you buy.
Which Mack CH years have the most complaints?
2002 (2), 1992 (1), 1994 (1). See every Mack CH year compared.
What should I do if my 1999 Mack CH has a problem?
If it is a safety problem, stop driving it if it is unsafe and contact your dealer. Report it to NHTSA at nhtsa.gov/report-a-safety-problem - enough reports start investigations and recalls - and share your experience here so other owners know what to look for.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data