- The problem
- On certain trucks equipped with aset ac model engines, the engine as configured with an external exhaust gas recirculation system makes servicing the fuel injection lines difficult when using traditional tools. Therefore, it is possible for fuel leaks to develop when removing and installing the fuel injection lines.
- The risk
- A leak in the fuel injection line may spray fuel on the hot surfaces of the exhaust gas recirculation system, which could result in an engine fire.
- The fix
- Dealers will replace the fuel injection lines free of charge. Note: this recall supersedes a previous campaign conducted in 2006 (please see 06v392). The recall began on september 11, 2007, with subsequent mailings every six weeks until april 2008. Owners may contact mack at 800-528-6586.
Vehicle safety record
2004 Mack CH Problems, complaints & recalls
No owner complaints about the 2004 Mack CH have been filed with NHTSA. It is covered by 5 recalls, the latest in September 2007 for the fuel system, diesel.
NHTSA data checked
CAbout as many problems as a typical CH year, for its age
- Complaints
- 0
- Recalls
- 5
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
2004 Mack CH recalls 5
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 trucks, a leak in the aset ac fuel injection line may spray fuel on the exhaust gas recirculation pipes that carry hot exhaust gases .
- The risk
- THIS COULD POTENTIALLY RESULT IN AN ENGINE FIRE.
- The fix
- Mack has issued a stop work on this campaign under further notice (2-22-2007). The remedy does not adequately address the issue on all vehicles. Mack will re-release the recall in the near future. (Please see nhtsa no. 07V159/mack recall no. Sco323 for vehicles that have had this repair already performed.) This recall has been superseded (please see 07v401/sc0324).
- The problem
- On certain heavy duty class 8 diesel trucks equipped with aset ac engines, the location of the fuel inlet hose may result in overheating or abrasion of the hose, which may lead to a premature failure.
- The risk
- If the hose fails, fuel can be sprayed on the exhaust manifold, which could potentially lead to an engine compartment fire.
- The fix
- Dealers will repair and replace the fuel inlet hose free of charge. The recall began on february 14, 2005. Due to some quality and supply issues with parts to support this safety recall, owners may have been informed during april 2005,that the safety recall was on hold. These issues have now been resolved. For owners who have not had their vehicle(s) repaired, contact a mack parts and service center immediately to schedule an appointment to have your vehicle(s) repaired. Owners may contact mack trucks at 610-709-2131.
- The problem
- On certain truck chassis, the steering gear mounting bolts were over-torqued at installation. The steering gear is mounted to the vehicle's frame rail with 3 bolts.
- The risk
- Failure of two of the three bolts could result in the loss of steering, which could result in loss of vehicle control, increasing the risk of a crash .
- The fix
- Dealers will inspect vehicles. New steering gear mounting bolts will be installed. The recall began october 2004. Owners should contact mack at 1-610-709-3337.
- 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.
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No complaints about the 2004 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 yearsQuestions about the 2004 Mack CH
Does the 2004 Mack CH have any recalls?
Yes - NHTSA lists 5 recalls for the 2004 Mack CH: fuel system, diesel (September 2007); fuel system, diesel (October 2006); hoses, lines / piping, and fittings (January 2005); steering (June 2004) 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 2004 Mack CH had?
None have been filed with NHTSA so far.
Is the 2004 Mack CH a reliable vehicle?
Its Safety Index is 50 out of 100 (grade C: about as many problems as 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 2004 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