2.3L & 2.5L I4 Tech General discussion of 2.3L and 2.5L I4 Ford Ranger engines.

2.3 86 Ford ranger

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Old 02-07-2018
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2.3 86 Ford ranger

So when the engine is cold it works perfectly but after about 30 mins of driving it, it starts bucking especially when I floor it, I’m thinking it’s a fuel pump issue but not 100% positive and this model has 2 fuel pumps a low and high pressure and if does happen to be a fuel pump issue which on would it most likely be?
 
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Old 02-07-2018
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Could be vapour lock if the fuel rails are near the exhaust or get hot. Just a thought. Not too familiar with this era engine, but check your dist. cap as well. I had a Fairmont that did the same thing, the distributor cap was worn out.
 
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Old 02-07-2018
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Originally Posted by woofer2609
Could be vapour lock if the fuel rails are near the exhaust or get hot. Just a thought. Not too familiar with this era engine, but check your dist. cap as well. I had a Fairmont that did the same thing, the distributor cap was worn out.
I replaced the distributor cap a few months ago but I’ll make sure the connections are good
 
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Old 02-07-2018
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Originally Posted by woofer2609
Could be vapour lock if the fuel rails are near the exhaust or get hot. Just a thought. Not too familiar with this era engine, but check your dist. cap as well. I had a Fairmont that did the same thing, the distributor cap was worn out.
sorry if this is a dumb question but can a EFI even get a vapor lock?
 
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