©
2009 IMPCO Technologies, Inc.
-14-
2009 3.5/3.9L Impala CNG
Heater hoses with Tees and Regulator Coolant
Hoses installed
2) Begin modifying the heater hoses by
pinching them with four hose pliers to make
room for the two plastic Tees.
3) Cut the heater hoses between the clamps,
install four hose clamps onto the hoses and
install the two plastic Tees.
4) Temporarily install the Regulator and cut
two lengths of the Regulator Coolant Hose
to fit between the two Tees and the
Regulator coolant hose nipples.
5) Slide hose clamps onto the two hoses and
install them onto the Tees.
6) Tighten the six clamps on the Tees and
remove the hose pliers.
7) Slide two more hose clamps onto the
Regulator Coolant Hoses, install the hoses
onto the Regulator and tighten the clamps.
8) Install the Regulator onto the engine
compartment rear bulkhead studs.
E. Lockoff and High Pressure Tubing Installation:
1) Locate the Lockoff bracket and mark it for
modification as illustrated. Cut off the end
of the bracket, drill two ¼” diameter holes
as indicated and bend the bracket 90
o
where indicated. Round off any sharp
corners with a file or grinder.
Summary of Contents for IMPALA 3.9L 2009
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