Grommets!
To validate this, go to your assembly manual where it shows the hole diagram. Page 86.
Look at ViewB (lower right side) Hole E1 both on the chart and on the diagram. E1 is in my picture above it is marked Hole B.
E) K30 CRUISE CONTROL
1. 1.63 +/- .02 DIA HOLE at
location shown.
To my knowledge that hole was only placed in the firewall if you had cruise control. So the presence of this hole tells me it was a cruise control car.
You can also look at the inner fender on the driver side and see if there is a bracket riveted there for the transducer. The bracket is pictured on page 338 of the assembly manual. Go to page 485 in your AIM and you'll see the cruise harness routing through the firewall in the hole marked B above.
Now go to your cable route page where it shows the cable entering from the tunnel area... It should say M21 and M20.. If the car had a MT this is where your cable would enter the car (also validated on the mt/no cruise car I have here) but it is not Hole B in my picture, it is hole C in my picture.
You say the car is a AT.. so in your speedo route picture, Page 496 shows the AT cars routing in through the hole next to the brake booster. That page should show M38
What I seeing is that the AIM isn't wrong, it's actually validating what I'm telling you.
Willcox
Last edited by Willcox Corvette; Sep 30, 2013 at 10:47 AM.







