58oldsman

First

I have a 2003 GMC Sanoma and have two problems..First..My gas gauge will go to full or wherever it supposed to when putting gas in the tank. However does not read correctly there after while driving.The problem does not show up so much on short daily trips where I shut the truck off and resart, But a road trip that is a different story..The gauge will not move from it's start up spot until the enging is shut off and restarted or I give the glass in front of the gauge a sharp smack with my hand and then it will move, but not completley like it does when shutting down. Along with this the speedometer and tack seam to stick and jump when accererating and deacelerating..Main thing is the low warning light will not come on until shut down. Making this situation dangerous..I.E running out of gas on hi speed highway and no where to pull off...




Second,

My heater works just fine but when switching to defrost very little or no air gets to the defrost vents all air comes out the panel and floor vents..

Anyone out there ever have or hear of the problems and fix..

Thaning you in advance.

58oldsman