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2003 Pontiac Montana SV6 repairs by problem area

Engine (33%)

Transmission and Drivetrain (2%)

Brakes and Traction Control (2%)

Suspension and Steering (36%)

Electrical and Air Conditioning (24%)

Paint, Rust, Leaks, Rattles, and Trim (2%)

Other (0%)

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Chart based on 45 repairs.

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2003 Pontiac Montana SV6 engine repair cost distribution

$2500+ (0%)

$1000 - $2499 (7%)

$500 - $999 (13%)

$100 - $499 (40%)

< $100 (40%)

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Chart based on 15 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

54560 mi

C $500

Rocker arm bolt pulled out.

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72414 mi US $350	Broken rocker arm on cylinder #3.
72897 mi US $350	Broken rocker arm on cylinder #5.
75674 mi US $2100	Intake valve rocker assembly #3 & #5 cylinders pulled out of head. #3 push rod pulled through rocker arm.

115940 mi C $275	Water pump seal let go. Belt was finished as well
117800 mi C $225	O2 sensor replacement

90000 mi

US $15

Dealer said our oil pressure sensor was not working, so we replaced it ourselves. Saw no change after replacing the part so not sure if repair was successful or not.

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230000 mi US $463	Replace leaking radiator.
237 mi US $50	The harmonic balancer failed resulting in a serpentine belt failure. Replaced the balancer and the belt.
253000 mi US $30	Lower Engine mount was bad. Replacement resulted in much smoother idle. Water pump was replaced. It had a slow leak.
263000 mi US $22	coolant bypass hose was replaced

106200 mi	Vehicle started to consume oil during the last 10,000 miles after no previous usage. No leaks found. Shop believes leaky seals exist. Will determine whether to keep vehicle. Will probably get second opinion.
130000 mi US $282	Water pump sprang a leak...
194000 mi US $900	Replaced thermostat