1973 Chevy Monte Carlo No Start - No Spark

Tiny
GRASJM36
  • MEMBER
  • 1973 CHEVROLET MONTE CARLO
Engine Mechanical problem
1973 Chevy Monte Carlo V8 Two Wheel Drive Automatic

I pulled into work and the car died, I tried to restart it but it would just turn over, fire a couple times and act like it was going to start but nothing! I let it sit for the day and tried again later. We determined that the gas guage was bad & that I ran it out of gas so we put a good 1/2 tank in. Still nothing - turn over, act like it was going to start but no start! Tried dripping a little gas in the 2 barrel carb but ended up flooding it. Battery started to drain from cranking it so much so we jumped the battery & continued to try. Early on we could smell gas & see it spurting up through the carb (choke) but it was inconsistent. Tried using starting fluid but at that point we had somehow lost spark all of a sudden as well as fuel pressure? Quite bizzare & I have NO idea what the problem could be? We tried changing the distributor cap, rotor & points/condenser as well as the ignition coil & still no spark & no fuel flow? The fuel pump is a manual pump. I just had a new A/C unit put in about a week ago and I am thinking that maybe the mechanic inadvertantly knocked a wire loose or off but at this point I am thoroughly STUMPED? Please help! Thank You!
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Friday, August 21st, 2009 AT 9:47 AM

3 Replies

Tiny
JDL
  • EXPERT
Hello, you need to make sure the battery has a full charge and all battery connections are good. Turn the key on, no crank, check for primary voltage at the coil. If you have good voltage, use a test lite on the negative side of coil, with engine cranking, the lite should pulse. I guess the coil wire is ok?
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Friday, August 21st, 2009 AT 3:56 PM
Tiny
GRASJM36
  • MEMBER
The coil wire is brand new along with the coil, cap, rotor and points/condensor. The battery has power but starts to drain after cranking engine for awhile - we have used jumper cables & another vehicle to jump the battery. The starter engages, engine cranks & no spark. I have a plug pulled (also a new plug wire) & grounded to block but no blue spark while engine cranks? I havent tried checking for primary voltage at the coil - do I use the same test light as I do when checking the negative side of coil with engine cranking? I was also wondering if it is possible to use a wire to jump from the pos. Terminal on battery to the pos. Terminal on coil to energise the coil? I dont have a test light but I will go pick one up now. Thanks a lot for your help I appreciate it!
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Friday, August 21st, 2009 AT 4:32 PM
Tiny
JDL
  • EXPERT
Yes, you can use a regular testlite on the negative side of coil. Yes, you can run a jumper from B+ to positive side of coil.
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Saturday, August 22nd, 2009 AT 7:44 AM

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