2004 Optima AH-28 Problems: 0 Complaints, 2 Recalls

The worst 2004 Optima AH-28 problems

Ranked by number of owner complaints. Mileage and cost come from what owners wrote.

Tap a problem to see which part fails, at what mileage and in which other years.

Fuel system, other: delivery: fuel pumpReported September 13, 2005 · 167 vehicles affected

What is wrong: On certain transit vehicles and trolleys equipped with cummins isb-02 diesel engines built with emc controlled fuel lift pumps. Erratic voltage supply to the fuel lift pump causes premature electric brush wear internal to the fuel lift pump. This premature wear could result in fuel lift pump failure and in some cases may cause an engine stall condition.
Risk: Should the engine stall, a vehicle crash could occur.
Remedy: Cummins, in conjunction with optima bus, will notify owners and repair the engines by emc recalibration and replacement of the fuel lift pump at no charge to the customer. Owners may contact cummins assistance center at 1-800-diesels or optima bus at 1‑316‑779‑7700.

Recall number 05V405000 · Recall details

Engine and engine coolingReported March 24, 2005 · 2 vehicles affected

What is wrong: On certain transit buses equipped with webasto heaters, the burner tubes are made of material that does not meet specifications and could fail prematurely.
Risk: Should the burner tube fail, the coolant heater could overheat, possibly resulting in a fire.
Remedy: Webasto dealers will replace the suspected defective parts free of charge. Owners may contact optima at 316‑779‑7700 or webasto at 810‑593‑6000.

Recall number 05V108000 · Recall details

Used buying checklistWhat to check on a 2004 Optima AH-28 before you buy

Is the 2004 Optima AH-28 reliable?

Owners have filed 0 complaints about the 2004 Optima AH-28.

What is the most common problem with the 2004 Optima AH-28?

There are not enough complaints to tell.

How many recalls does the 2004 Optima AH-28 have?

2 recalls, covering fuel system, other and engine and engine cooling.

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