[A26B]

I'm with Bob here..... I think we may be doing the chicken little thing regarding the head gasket.. Should save the worst for last. Worry when needed. BIG difference in replacing injector housing gaskets & replacing head gaskets.

EZ check for head gasket leak. Remove the radiator cap (while cool of course) watch for bubbles in the coolant.

Injector housing bolts do get loose. Loose bolts could let coolant leak into the intake runners, causing miss, white smoke & sweet smell in the exhaust, along with low coolant in the overflow reservoir. Could leak into cyl's 1,2,3 or 4. Plugs would be white. Remove plugs only when engine is cool to prevent seizing. Do a little sniff test on each cylinder while the plug is out.

Don't stress. Pretty unlikely to blow a head gasket just tooling down the road......especially on Thanksgiving with your wife in the car!