2003 Z71 suburban - 5.3L -102k miles.
Several problems, however I'll start with the major problem of stalling while driving. First started noticing problem when I drove it to PHX (hot) a week ago. The vehicle will eventually start back up after a couple of minutes, runs fine for 10-20 miles, then same thing. This is all in the day time of 85 + degrees, notice at night time it runs fine with out stalls. Is something overheating? The stall usually happens when you demand a little more acceleration, then idle speed drops below 1k then turns off.
I took it into the dealer shop with no bad checks, all is well I’m told, no SES light. Changed spark plugs, Change air filter to K& N, Fuel system clean process. Checked transmission fluids.
Other problems - Speedometer dead, Bose Stereo system works when it wants to, Service air-bags light comes on at random
Some say it’s the fuel pump going bad, I had that replaced several months back. Would daytime heat play a roll in malfunctioning in the pump?
Sunday, May 28th, 2006 AT 9:04 AM