how to fix light display on radio & overhead

25

Asked by Mar 29, 2008 at 10:24 AM about the 1999 Pontiac Montana 4 Dr STD Passenger Van Extended

Question type: Maintenance & Repair

3 Answers

43,455

See other post.

5 of 5 people found this helpful.
305

I have experienced similar issues with our '99 Montana. Try pushing hard on the overhead information display. On ours, most of the time, the display comes back to life which tells me there is a grounding problem and/or connection problem with the display. Separate but possibly related is the ground connection for the radio which (now correct me if I'm wrong...anybody else reading this post) is linked to the antenna connector on the back of the radio. I took the center trim off and the 2 screws holding the radio on and by wiggling the antenna connection wire, the radio display went back to normal, rather than they hyroglyphics I was seeing before. Overhead display also seems to be behaving itself (for how).

4 of 4 people found this helpful.
305

Update: I took the overhead display apart and found the display crystal on the pcboard had bad solder joints. The way I found the culprit was, I took the bare pcboard, plugged it back in and started the van. With a plastic probe, I pressed certain components and found if I pressed gently on the silver display driver, the display came back on. With a bit of surface soldering, the problem was fixed. I will post a picture of which specific part was the culprit. Hopefully this will fix yours as well. As for the radio, definitely a grounding issue. Ours still scrambles once in a while

15 of 15 people found this helpful.

Your Answer

Add photo

Related Questions

Montana

Looking for a Used Montana in your area?

CarGurus has 309 nationwide Montana listings and the tools to find you a great deal.

ZIP:

Search Pontiac Montana Questions

Pontiac Montana Experts

#1 Countrygal77
Countrygal77
Reputation 2,010
#2 Robert Reed
Robert Reed
Reputation 1,440
#3 Jim Space
Jim Space
Reputation 750
View All

Related Models For Sale

Used Toyota Sienna
223 Great Deals out of 29,669 listings starting at $1,495
Used Honda Odyssey
213 Great Deals out of 20,909 listings starting at $1,900
Used Dodge Grand Caravan
168 Great Deals out of 26,542 listings starting at $2,300
Used Chrysler Town & Country
274 Great Deals out of 16,152 listings starting at $900
Used Chevrolet Venture
430 listings starting at $1,699
Used Dodge Caravan
667 listings
Used Oldsmobile Silhouette
136 listings starting at $1,995
Used Pontiac Grand Prix
30 Great Deals out of 2,863 listings starting at $1,600
Used Nissan Quest
65 Great Deals out of 2,760 listings starting at $2,499
Used Chevrolet Tahoe
559 Great Deals out of 31,371 listings starting at $1,500
Used Chevrolet Silverado 1500
1,764 Great Deals out of 181,202 listings starting at $250
Used Ford Windstar
666 listings
Used Nissan Pathfinder
282 Great Deals out of 22,989 listings starting at $1,499

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.