1972 Pontiac Lemans cranks but no start condition

Asked by Sep 22, 2016 at 07:12 PM about the 1972 Pontiac Le Mans Base

Question type: Maintenance & Repair

Hi, I have a 1972 pontiac lemans 400ci 4bbl. The
problem is a crank but no start condition. I have
replaced the starter/main wire, HEI distributor w/
coil, battery, alternator, fuel pump was replaced by
the previous owner but it works fine, also installed
a new fuel tank/sending unit, checked the fuel
filter, and I'm sure there's more. I am thinking it
may be either a wiring or timing issue, but that's
just speculation. Any suggestions would be greatly
appreciated. Thank you in advance!

2 Answers

16,095

Spray some starter fluid in the carb and see if it hits. If it does not pull a plug and see if you have fire ground it out on the block.

3 out of 3 people think this is helpful.
24,315

Check for spark - they make a really cheap tool (costs about 3 bucks and it's called a "HEI spark tester") that you install on the end of a plug wire and will light up when receives voltage when cranking. I know you replaced the distributor, but you should confirm you have spark.

1 out of 1 people think this is helpful.

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