Thread: Ignition Switch?

The trip computer/boost gauge on our '03 GTP started to go off and on intermittently. When it does this, I can hear clicking in the area of the parking brake (I think - I don't hear very well so it's tough to isolate sounds sometimes). Now it's getting worse - it's doing it more often and will shut off when I turn on the blower fan. It will come back on if I turn the blower speed up to 5. I googled it and the most common cause I came across with those symptoms is the ignition switch. They say it's a known issue with the W bodies. Has anyone experienced this? Is the ignition switch a good bet?

Originally Posted by Scottydoggs

"ignition" harness is the part your looking for.

parking lights not working, heater fan speed not working right, interior lights staying on, all common things, not sure if that affects the dic, but hell it just might. they run like 50 or less on line.

Thanks. Carparts.com had a generic one for $35 but I splurged for the Delco part at $75. Not sure if it's worth it or not, but I feel better using GM parts. On the other hand, it's the original GM part that has failed.

Originally Posted by Scottydoggs

rock auto has em for like 48 bucks for some years, you might have the years that cost more.

jobs not to hard, ive done a few of them now. Sparky's Answers - 2002 Pontiac Grand Prix, Changing The Ignition Switch

last one i did for a member here. i got little plies of screws and bolts, hes like how do you know where they all go? lol why he was not doing the job himself i suppose.

Yeah they had an airtex/wells part for $55 and the prices went up from there. Their price for the Delco part was pretty much the same as what I paid on Amazon when you factor in shipping. Normally I use Rock Auto for everything but it slipped my mind today. Amazon does ship quicker though.