All four signal lights burnt out and indicator is flashing really fast.
I changed all four bulbs and the indicator in the dash is still flashing really fast

Is the Pontiac Montana the Lindsay Lohan of minivans? Genuinely versatile, it has suburban family appeal, yet is dressed up in a fun and sporty performance package. Ultimately, the Montana is saddled with more problems than you probably want to deal with. Sound familiar? You be the judge.
In 2006, the Montana will be replaced with the even more SUV-like Montana SV6, so the 2005 Montana prepares by drastically reducing its trim offerings. Gone is the regular wheelbase model. Now only an extended 120-inch-wheelbase minivan is offered. All-wheel drive is history. Sports packages remain, adding a stiffer suspension, rear spoiler, hood bulges, badging, and performance tires. The 3.4-liter, 185-hp V6 remains, along with the 4-speed automatic transmission. ABS is no longer standard. Bucket seats and/or captain's chairs can be moved or folded for flexibility, though some report that removal is difficult and cumbersome despite the seats being lightweight.
Convenient dual sliding doors help with passenger and cargo loading, and a power option is available for both sides. Some owners have complained the power doors have a mind of their own, however, so step lively. Rear wipers, automatic climate control, cruise control, OnStar, power features, and a roof rack are all standard. MontanaVision DVD entertainment and rear audio controls keep kids happy and sated. A parking assist is another nice option.
2005 Montana drivers were always pleased with its engine performance and power, the sporty non-minivan look, and decent gas mileage for a minivan. Acceleration was responsive. The power door option was a big hit. On the downside, plastic parts look cheap and break easily. Seats do not fold completely into the floor. Mechanical (head gasket) and electrical (power door) problems persist. There are reports of excessive wind noise.
I changed all four bulbs and the indicator in the dash is still flashing really fast
I own a 2005 Pontiac Montana minivan. what would cause the speedometer needle and the temperature needles to not drop to zero when the motor is not running? when the motor is running the needles will either stay in one position or be way above where they should be running normally. Other than the needles not functioning properly there is no other issues with the vehicle.
Do you have picture
Check plug on coil. power wire. And the ground wire black with white stripe i have checked every thing else. And my ground wire was broken somewhere so i tied a new one to the body and the black wire on plug .PS it started yahooo.
Air Conditioning
Automatic climate control front air conditioning · Single front air conditioning zones
Airbags
Dual front airbags · Front side airbags
Audio System
Single disc in-Dash CD · MP3 player: CD MP3 Playback · AM/FM radio · Rear audio: rear volume control
Brakes
ABS: 4-wheel
Comfort Features
Steering wheel trim: leather
Convenience Features
Multi-function remote: keyless entry · Steering wheel mounted controls: audio
Doors
Side door type: power sliding
Exterior Features
Side door type: passenger-side manual sliding
Lights
Headlights: Auto on/off
Mirrors
Exterior mirrors: power
Rear Seats
Type: bucket
Roof
OEM roof height: undefined · Roof rack color: black
Safety
Child seat: built-in · Parking sensors: rear
Seats
Front seat type: captains chairs · Heated: front seats · Rear seat folding: split · Upholstery: cloth
Tires and Rims
Wheel type: aluminum alloy · Wheels: chrome
Windows
Front wipers: intermittent
Air Conditioning
Automatic climate control front air conditioning · Single front air conditioning zones · Automatic climate control rear air conditioning · Dual rear air conditioning zones
Airbags
Dual front airbags · Front side airbags
Audio System
Single disc in-Dash CD · MP3 player: CD MP3 Playback · AM/FM radio · Rear audio: rear volume control
Brakes
ABS: 4-wheel
Comfort Features
Steering wheel trim: leather
Convenience Features
Multi-function remote: keyless entry · Steering wheel mounted controls: audio
Doors
Side door type: power sliding
Exterior Features
Side door type: passenger-side manual sliding
In Car Entertainment
Video system: DVD player
Lights
Headlights: Auto on/off
Mirrors
Exterior mirrors: heated
Rear Seats
Type: captains chairs
Roof
OEM roof height: undefined · Roof rack color: black
Safety
Parking sensors: rear
Seats
Front seat type: captains chairs · Heated: front seats · Rear seat folding: split · Upholstery: cloth
Tires and Rims
Wheel type: aluminum alloy · Wheels: chrome
Windows
Front wipers: intermittent