vortechcharger

So where to begin...

We decided to replace the following on my son's 87 GT. It was running fine but we wanted to add on shiny new parts. Here is what we did:

* New upper and lower intake (and gaskets) - Typhoon
* New Fuel Injector Wiring Harness
* New 19lb injectors - Accel
* New Spark Plug wires
* New PCV
* New 160 degree thermostat
* New Idle Air Control Motor

So now I have a rough idle (stalls easy) but I have white smoke coming out of the passenger side exhaust (none from the drivers side).
Before I start tearing everything apart again does anyone have any ideas?

mongolchuck

First thing verify your timing, firing order and vacuum lines. Is your coolant level the same? White smoke usually indicates coolant getting in to the combustion chambers.

dawson1112

Did you use any RTV on the coolant ports when you did the lower intake?

88 orangepeel notch

This is alittle off topic, but swap that 160' thermostat to a 180' or the stock 195'. The computer will think it's always in cold start mode and run in "closed loop" or choke mode. Ruining your gas mileage and cause premature engine wear.

mjr46

check oil for coolant contamination and tb spacer for coolant leak into intake, if both fine, you have a vaccum leak due to operator misinstallation of the intake

vortechcharger

Thanks for all the feedback guys. I will start looking at everything mentioned above.