have a 03 sonoma 4.3 4x4. the heater blows air outof all, I changed controls n noticed signs of oil? 4x4 isnt working, hear engage in transfer case. little vac? where do i start?help much appreciated!

10

Asked by Feb 19, 2012 at 12:31 AM about the 2003 GMC Sonoma SLS Crew Cab 4WD

Question type: Maintenance & Repair

thinking I narrowed to vac problem. push button on 4x4, an here transfer case engage, so replaced accuator on top of transfer case, that not fix. took battery tray out, an very little vac going to diaphram? Diaphram looks decent shape an can move cable. when running in 4 wheel drive just have little vac an cant believe it enough to move cable. an idea on vac or where to go next?

1 Answer

10

pinhole vac leak. Blew cig smoke through line an found line rubbin by tranny. replaced an all works like new.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Search GMC Sonoma Questions

GMC Sonoma Experts

#1 parkle
parkle
Reputation 650
#2 Mike Bonnell
Mike Bonnell
Reputation 430
#3 James Mayfield
James Mayfield
Reputation 310
View All

Related Models For Sale

Used Chevrolet S-10
4 Great Deals out of 1,419 listings starting at $1,995
Used Chevrolet Colorado
213 Great Deals out of 22,211 listings starting at $2,495
Used Ford Ranger
178 Great Deals out of 6,234 listings starting at $1,300
Used GMC Sierra 1500
863 Great Deals out of 64,428 listings starting at $1,500
Used Chevrolet Silverado 1500
1,952 Great Deals out of 159,917 listings starting at $1,995
Used Ford F-150
2,428 Great Deals out of 210,086 listings starting at $895
Used GMC Canyon
112 Great Deals out of 7,423 listings starting at $800
Used Toyota Tacoma
520 Great Deals out of 37,563 listings starting at $2,950
Used Dodge Dakota
105 Great Deals out of 3,905 listings starting at $1,500
Used Nissan Frontier
384 Great Deals out of 25,947 listings starting at $890
Used Dodge Ram 1500
437 Great Deals out of 11,488 listings starting at $700
Used Chevrolet Blazer
1,141 listings starting at $1,995
Used Toyota Tundra
513 Great Deals out of 32,145 listings starting at $2,995
Used GMC Yukon
393 Great Deals out of 16,289 listings starting at $1,800

Used Cars For Sale

2003 GMC Sonoma SLS Crew Cab 4WD For Sale
21 listings starting at $3,988
2002 GMC Sonoma SLS Crew Cab 4WD For Sale
24 listings starting at $3,495