[earnhardt3]

OK, here is the problem(s). A month ago I had cold start problems with my Bravada (4.3 Vortec). Fuel Pressure Test indicated a rapid leakdown from 60 psi to 0 psi. The Auto Repair Shop replaced the 'spider' assembly and everything was fine for a week. Same problem occurs a week later and they replaced the fuel pump/filter. The cold start problem has been fixed, but here's my new problems:

1. Erratic Idle when cold. Acts like it wants to stall, but idle increases, then decreases. This doesn't occur when the vehicle has warmed up.

2. When the A/C is switched on the idle drops like it wants to stall, then increases to normal RPM. This occurs anytime the A/C clutch engages/disengages.

3. Driveability: during deaccel (coming to a stop) the engine tends to surge for a second (increases RPM).

4. Gas Mileage has decreased from 16 to 10 mpg.

I will take the vehicle back to the shop to have them fix this right; I was just wondering if they screwed something up when replacing the 'spider' assembly? Any suggestions would help.
Thanks.