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Registered
Join Date: Mar 2002
Location: Philadelphia, PA
Posts: 12,680
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Troubleshooting............
Quote:
Originally Posted by steve84
My 1984 Carrera died in my driveway and would turn over but not start. I haven’t used it much over the past several years and suspected that old gas turned bad. I drained the old gas, replaced the gas filter and added 5 gallons of gas with 5 oz of Chevron Techron complete fuel system cleaner. Same result, turns over but doesn’t start. I took off the air filter, and yesterday, I sprayed in starting fluid and it started right up. I let it idle in my driveway for 20 minutes and then pulled it into garage and turned it off. This tells me that the fuel is now good, the fuel pump is working and the battery is ok.
This morning, more of the same, turns over but doesn’t start. On the first attempt with starting fluid, there was a couple of pops from the engine and that was it. On the second attempt with starting fluid, the engine roughly started and then smoothed out and I let it run for 10-15 minutes. I turned it off and then I was able to immediately restart it. I was also able to restart it at 5 minutes after and 20 minutes after turning off the engine. But after 2 hours, I’m back at the engine turning over but not starting.
At this point, I’m think that there’s a problem with the spark plugs. I suspect that while the spark plugs can generate a spark hot enough to ignite starting fluid, it’s not hot enough to ignite gasoline. So my next step is to change out the spark plugs. I’d appreciate receiving any thoughts or suggestions that you may have. TYIA
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Steve,
You already found the culprit to your starting problem but you were not aware about it. Install a pressure gauge at the test port near cylinder #1 fuel rail and test run the FP. There are several ways to run the FP for residual pressure tests.
Tony
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10-14-2022, 10:47 AM
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