
1998 GMC K1500 Suburban SLE 5.7L Poor Acceleration
suspecting fuel pump. ondemand says that fuel pressure should be above 60 psi constantly and napafix says it should be appx 60 psi with a 5-10 drop at idle what is correct? only has 51 psi at idle. also low amp probe test shows a pump spinning at 10,500 rpm bu...
FIX posted 10/22/2008
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Message Closed w/FIX
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VIN | 3GKFK16R0W |
Engine | 5.7 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / CSI |
Emissions | OBD-II Compliant |
Symptoms | Poor Acceleration |
Occurs | On Accel |
Trouble Codes
P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Message Closed w/FIX
Vehicle Data
1998 GMC K1500 Suburban SLE
VIN | 3GKFK16R0W |
Engine | 5.7 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / CSI |
Emissions | OBD-II Compliant |
Symptoms | Poor Acceleration |
Occurs | On Accel |
Trouble Codes
P0420 | Catalyst Efficiency Below Threshold (Bank 1) |