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#1
10-15-2003, 06:32 PM
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TBI fuel in and out ??
I have a 90 350 vortex..
My question is: which of the two fuel lines is the inlet? I assume there is a differance,since one is the return line to the fuel tank.... I've looked everywhere,in haynes,ask someone..could someone please fill me in !!!! as alwayz, Thank you for your support !!! Doug 
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#2
10-15-2003, 07:02 PM
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Re: TBI fuel in and out ??
The larger of the 2 is the pressure line, smaller 1 is the return.
__________________
Why do you never have enough time or money to do the job right the first time, but enough time and money to do it again? Got all the certifications 25 years ASE Certified Master Technician GM WCT Yea..I work at a DEALERSHIP....got a problem with that? Want to diagnose cars like the Pros? FOR SALE: OTC Perception 2 channel Labscope (badged as a Matco Reality) This is my personal labscope that I use to diagnose waveforms, like new, comes with leads and training video PM Me for details
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#4
10-15-2003, 10:12 PM
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Re: TBI fuel in and out ??
They shouldn't be if I remember right. The pressure line is 3/8 and the return is 5/16.
The line that goes straight into the TBI unit is the pressure line, the return has an almost U or L shaped bend in it.
__________________
Why do you never have enough time or money to do the job right the first time, but enough time and money to do it again? Got all the certifications 25 years ASE Certified Master Technician GM WCT Yea..I work at a DEALERSHIP....got a problem with that? Want to diagnose cars like the Pros? FOR SALE: OTC Perception 2 channel Labscope (badged as a Matco Reality) This is my personal labscope that I use to diagnose waveforms, like new, comes with leads and training video PM Me for details Last edited by GMMerlin; 10-16-2003 at 07:20 AM.
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