2003 Isuzu Ascender Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2003 Isuzu Ascender
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2003 Isuzu Ascender ProblemsHarsh transmission shifting due to failed input speed sensor
The transmission may develop a harsh shift condition with the Check Engine Light on and fault code P0717 stored. This is commonly cased by a failed input speed sensor (ISS), located inside the transmission. The wiring at the sensor may be found damaged. If so, the sharp edges near with ISS wiring should be filed smooth to protect the new speed sensor wiring from damage.
The horn may not function at times due to a faulty ground circuit in the steering column. Our technicians tell us that adding a ground strap between the upper and lower steering column mounting points will commonly correct this issue.
A no crank condition may occur and the IGN E fuse is blown. If this occurs our technicians recommended 3 places to inspect for wiring issues: Under the sill place at the drivers side rear door opening, along the steering column, and near the brake pedal bracket. Damaged wires will require repair and should be repositioned and protected from further damage.
2003 Isuzu Ascender QuestionsCan I still drive if oil light is on w wrench it just came on (1 answer)
Oil light w wrench
After I drive off, I hear water running through pipes in dash or behind dash under the hood.
It a sounds like water running through the pipes in the heater or cooling system
2003 Isuzu Ascender RecallsRecall 05V494000
The turn signals may operate like hazard flashers when intending to signal for a turn. The driver may not be able to clearly signal their intentions, increasing the risk of a crash. Dealers will replace the suspect flasher modules with a new flasher designed with sealed relays for better durability. The recall began August 4, 2005. The GM recall number is 05044.
The windshield wipers may not turn on, turn off while in operation, or may not turn off. The windshield washer pump may operate continuously as well. Water in the wiper modules can cause a short circuit or can corrode the components in the module. Depending on the condition, this could cause reduced visibility, which could result in a crash. Dealers will replace the windshield wiper system assembly. The recall began on July 15, 2004.