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Old 04-19-2005, 03:52 PM
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Engine Died, Lost Fuel Pressure

I am writing this thread for the purpose of documenting a problem I recently had and wanted to share the cause so that anyone searching may find this information useful.

As many already know, I converted my 1994 Suburban over to TPI (Click here for Details). When doing this, I installed a 1991 GTA high pressure in-tank fuel pump in place of the stock TBI low pressure pump. Apparantely, I inadvertently re-installed the short lenght of low pressure hose. In less than one year and approximately 15k miles, it split the side and therefore, I lost nearly all fuel pressure at the rails.

I knew it was either a pump or in-tank hose problem when I manually crimped the return line and could only get about 10 psi of pressure. A normal TPI pressure is 40+ psi.

I went ahead and installed a new AC Delco pump, strainer and the section of hose that came with the pump. Click here for the link and below are a few pictures. Ed


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Old 04-19-2005, 05:36 PM
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Good to know. I dont imagine that many people would think fuel line/hose failure when it comes to a problem like that.
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