Car Information:
Ford Explorer
Year: 1988
Engine Size: 4.0L V6
Trans: Automatic

Issue/Question: 107k miles Engine Light on. Codes P0171 and P0174. I have read several things about this code. O2 sensors, intake manifold gasket leaking, mass air flow mechanism. I know that the only way to find the leak for sure is to run a vaccuum diagnostic check. My questions are as follows: What is the charge for the vaccuum diagnostic check and if the intake manifold gasket was faulty shouldn’t I see coolant drops on the garage floor? I do not see any.

No it can leak vacuum and never leak any coolant, it depends on where the leak is. If we don’t do the repair after diagnostics we charge $84.50 for our time.

Magic Mechanic
1432 Lee Road OrlandoFL32804 USA 
 • (407) 298-7447