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07-23-2020
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#1 |
 Join Date: Jun 2020
Posts: 7
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Old style fuel pump?
Having what I think is a fuel delivery issue with my 1991, 30K miles. Changed the fuel filter, same problem, starts right up, runs a few seconds (longer if you wait longer between starting attempts) then stalls. Pulled the fuel pump after watching videos, and my pump has 2 separate pumps on the same assembly. manual testing shows one works, one does not. It is not the same pump I see on the videos. Replacement pump looks like the same pump (one pump only) in the videos. Is my old one now being replaced with this new version?
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07-23-2020
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#2 |
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Join Date: Jun 2012
Location: fort worth
Posts: 183
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Re: Old style fuel pump?
The ZR-1 has two pumps.
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07-23-2020
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#3 |
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Join Date: Jun 2020
Posts: 7
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Re: Old style fuel pump?
Napa shows this single pump for the LT5. My shop used the proper vin and this is the pump that was listed.
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07-23-2020
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#4 |
 
Join Date: Dec 2007
Location: NYC
Posts: 1,182
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Re: Old style fuel pump?
Lt5 uses two pumps a primary and secondary replace the bad pump or both and put it back in.
__________________
90 Chevy ZR1 LPE #2315 'SOLD' 90 Chevy ZR1 LPE #2774 'SOLD' 91 Chevy ZR1 Callaway aerobody 91 Chevy ZR1 #1512 91 Chevy ZR1 #951 95 Chevy ZR1 #338 'SOLD' 91 BMW 850i 94 BMW 850csi 95 BMW 850csi 94 Lotus Esprit S4 07 Benz CLS550 06 BMW M5 "SOLD" |
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07-24-2020
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#5 |
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Join Date: Jun 2020
Posts: 7
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Re: Old style fuel pump?
Are both pumps in the fuel tank?
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07-24-2020
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#6 |
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Join Date: Dec 2007
Location: NYC
Posts: 1,182
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Re: Old style fuel pump?
__________________
90 Chevy ZR1 LPE #2315 'SOLD' 90 Chevy ZR1 LPE #2774 'SOLD' 91 Chevy ZR1 Callaway aerobody 91 Chevy ZR1 #1512 91 Chevy ZR1 #951 95 Chevy ZR1 #338 'SOLD' 91 BMW 850i 94 BMW 850csi 95 BMW 850csi 94 Lotus Esprit S4 07 Benz CLS550 06 BMW M5 "SOLD" |
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07-24-2020
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#7 |
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Join Date: Jun 2020
Posts: 7
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Re: Old style fuel pump?
I will start looking right now. Any suggestions where to find one?
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07-24-2020
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#8 |
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Join Date: Jun 2020
Posts: 7
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Re: Old style fuel pump?
What do you think of the TI Walbro Ligenfelter dual pump?
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07-24-2020
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#9 | |
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Join Date: Jun 2012
Location: fort worth
Posts: 183
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Re: Old style fuel pump?
Quote:
You'll need 2 new screens. Acdelco TS1 short Acdelco TS2 long Gasket Spectra L0148 2x Pumps required. Options include: Acdelco EPS148 -includes new clamps (made in Brazil Airtex E320 (made in china) There are several others that will work. O-rings - viton 5mm x 8mm Grainger #1RHN7 Last edited by CamP; 07-24-2020 at 11:53 AM. |
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07-24-2020
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#10 | |
 
Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
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Re: Old style fuel pump?
Quote:
H 
__________________
90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. |
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Linear Mode
