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Old 04 Jul 2011, 01:44 pm
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Default Intermittent starting problem in heat

I've got a 2000 Accord with the 2.3 ULEV-VTEC engine and auto trans.

The issue only happens when it's been sitting in the heat of the day (over 80 ambient temp- it happens more frequently as it approaches 100+) and usually if it's been sitting and hasn't run for several hours. I live in a very dry but quite hot summer climate.

Here's the problem:

I will start the engine and it will barely idle and chug along for just a moment before dying. When this happens it's very very rare that it will start right up again. Usually the engine will just crank with no sign of life.

If I let it sit, it will eventually start right up and run perfectly as though nothing happened. Sometimes it will start right up after sitting for five minutes, sometimes fifteen minutes, sometimes half an hour but there's been times in extreme heat where I just have to walk away and start it up later in the day or evening but eventually it will always start again.

After this happens there is never a code and the CEL doesn't set. It did this same thing last summer too and I never found a cause or a cure. Our winter months average in the high 40's to low 50's and it runs fine for all those months.

I'm a little perplexed. Any ideas? Thanks.
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Old 09 Jul 2011, 11:37 pm
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Default Re: Intermittent starting problem in heat

Re-soldered the pins on the main relay and that seems to have taken care of it. Easy 45 minute fix.
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