The 2004 GMC W4500 has 1 NHTSA recall campaign affecting an estimated 253 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 2 complaints with NHTSA, most often about the fuel system, diesel. Last updated July 5, 2026.
ON CERTAIN TRUCKS EQUIPPED WITH RPO IK9, DUE TO INSUFFICIENT DURABILITY AND TESTING, THE FUEL SWITCHING MANIFOLD SOLENOIDS LACK WATER OR SALT INTRUSION RESISTANCE, WHICH CAN LEAD TO FAILURE OF ONE OR MORE SOLENOIDS. FUEL SWITCHING MANIFOLD SOLENOID FAILURE WILL CAUSE INCORRECT FUEL DELIVERY RESULTING IN FUEL…
Consequence
OVERFLOW FUEL MAY RESULT IN HIGH AMOUNT OF DIESEL FUEL LEAKAGE. FUEL LEAKAGE, IN THE PRESENCE OF AN IGNITION SOURCE, COULD RESULT IN A FIRE.
Remedy
DEALERS WILL REPLACE THE SOLENOID VALVE ASSEMBLY WITH AN IMPROVED ASSEMBLY INCLUDING ADDITIONAL DETECTION CIRCUIT AND ENHANCED WATER RESISTANCE FREE OF CHARGE. THE RECALL BEGAN ON OCTOBER 27, 2005. OWNERS MAY CONTACT ISUZU AT 1-800-255-6727.
Complaints by component
FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
1
SERVICE BRAKES, HYDRAULIC
1
Total complaints2
What owners report
Verbatim reports filed with NHTSA, lightly edited for readability and with personal
information removed.
“Tl*the contact owns a 2004 gmc w4500. The contact referenced nhtsa recall campaign id number: 05v168000, fuel system, diesel:storage:tank assembly. While driving 30 mph the vehicle started to hesitate. He took the vehicle to a local mechanic and they cleaned the fuel tank. The following day he…”
“Tl*the contact owns a 2004 gmc w4500. The contact referenced nhtsa recall campaign id number: 05v168000, fuel system, diesel:storage:tank assembly. While driving 30 mph the vehicle started to hesitate. He took the vehicle to a local mechanic and they cleaned the fuel tank. The following day he…”
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL,
FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2004 GMC W4500 as of
July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page
contains ads and affiliate links. Full methodology.