2004 Toyota Highlander Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2004 Toyota Highlander
Verified by mechanics, reported by drivers like you
Ask a mechanic in our community
Never overpay. Check prices with our estimator
2004 Toyota Highlander ProblemsCheck Engine Light Due to Hose Off of Air Filter Housing
When changing the air filter, it is easy to knock off a hose on the air filter housing, which is part of the emission control system. If the vehicle is driven with this hose disconnected, the Check Engine Light will illuminate.
On higher mileage vehicles, an engine misfire may develop and/or the Check Engine Light may illuminate due to a failed ignition coil. It is not uncommon to replace all the coils when the first one fails in order to prevent return trips to the repair shop.
2004 Toyota Highlander QuestionsCan I use synthetic oil in my highlander with 114000 miles.Never used synthetic (2 answers)
I just bought this car and went for Inspection which failed because it says "on board computer system, OBD (Monitor Catalyst, Monitor EVAP, Monitor O2) not ready to be tested." Neither the technician nor anyone has an answer to this problem. Please help I need to register it soonest. Tnx.
2004 Toyota Highlander RecallsVarious Issues Due to Failed Crankshaft Pulley
The amount of adhesive applied between the inner and outer parts of the crankshaft pulley may be inadequate. If this is the case, the outer ring may become misaligned and/or not properly rotate with the inner ring, causing an abnormal noise and/or illumination of the Check Engine Light. In some cases, the power steering belt could come off resulting in a loss of power steering assist, increasing the risk of a crash. Dealers will inspect the crankshaft pulley and replace it if necessary.
The floor carpet cover may interfere with the accelerator pedal if its forward retention clip is not installed properly. As a result, the throttle can become stuck in a partially open position, increasing the risk of a crash. Dealers will replace the carpet cover with a newly designed one. No owner notification schedule has been provided at this time.
A seal between the master cylinder and brake booster may fail and allow fluid to leak into the brake booster. This can cause reduced braking performance. Dealers will replace the seal with a newly designed one free of charge to resolve the concern.