2011 Chevrolet Impala-Fuel Pump Not Working

This 2011 Chevrolet Impala came in after the fuel pump and fuel pump relay had been replaced and there was still no fuel pressure. I was told by the customer that the computer must be bad and it was brought to me because programming would be needed. Proper testing could have prevented replacing parts that were … Continue reading “2011 Chevrolet Impala-Fuel Pump Not Working”

2003 Pontiac Grand Am, Fuel Pump Test

I had already replaced the fuel pump in this 2003 Pontiac Grand Am and while I was letting it run, I decided to check the amperage draw of the new fuel pump. I had already installed a fused jumper wire so I had easy access to connect my low amp probe. The picture above reads … Continue reading “2003 Pontiac Grand Am, Fuel Pump Test”

2003 Ford Expedition, No Run, No Fuel Pump Operation, Code P0231

This 2003 Ford Expedition came in with a no run condition. A quick check found no fuel pressure and a code P0231 (low voltage on fuel pump monitor circuit). I decided to go to the interior fuse box, where my wiring diagrams, stated the fuel pump relay and fuse are located. There are a couple … Continue reading “2003 Ford Expedition, No Run, No Fuel Pump Operation, Code P0231”

2001 Dodge Stratus, No Run Condition

This 2001 Dodge Stratus came in with the complaint that sometimes it just does not run. The car had recently been purchased from a used car lot and since buying it the new owner had installed two fuel pumps. It ran for about a week after the first one was installed. When the fuel pump … Continue reading “2001 Dodge Stratus, No Run Condition”

1991 Lexus LS400 – Cranks & Stalls

Vehicle cranks normally but within a few seconds the engine starts to stall. If the throttle is pressed the engine will run but it surges severely. With a little research I found that the fuel pump on this vehicle operates at two different speeds and that the speeds are controlled by changing the supply voltage. … Continue reading “1991 Lexus LS400 – Cranks & Stalls”

1985 Cadillac Fleetwood Brougham Low Fuel Pressure

This was not a particularly difficult problem but I thought it was interesting. Engine would die out on acceleration and felt like it was running out of fuel. Customer said it happened all of a sudden. Checked fuel pressure at service port located at rear of throttle body. Fuel pressure was at 5 – 6 … Continue reading “1985 Cadillac Fleetwood Brougham Low Fuel Pressure”

1999 Pontiac Montana Fuel Pump Fuse Blows

Customer stated that he has installed two fuel pump assemblies within a few days and fuel pump fuse continues to blow. Removed the fuel pump fuse and relay and replaced with fused jumper wires that have manual reset circuit breakers install. This allowed testing without having to constantly having to cycle the key for fuel … Continue reading “1999 Pontiac Montana Fuel Pump Fuse Blows”