Motor Vehicle Maintenance & Repair Asked by TheRookie051 on January 28, 2021
When driving for a bit at 70 mph. Headlights, dash lights, and radio start to cut in and out. Alternator has been replaced. When idle I’ve tested the battery and alternator stationary, everything turned on, and over 2000 rpms. All pass.
I also have this other issue where everytime I get gas my car wont start, it takes a minute to crank.
Could the fuel pump drawing too much power cause this issue?
This sounds to me like you have a fuel problem.
The first thing to do is to look at the fuel filter to see if this is clogged up,this is typical when your car looses power when driving.
The second thing is to see if the fuel pump give the right amount of fuel at the right pressure,to diagnose this you need to take of the fuel hose(put the end of the hose in a bottle to collect the fuel)turn on the ignition to see if the pump is running and producing a good fuel flow(in most cars the pump starts when you turn on the ignition if not you need to run the starter for the pump to start).
The last thing is to take a look at the electrical system,bad battery-loose connection-charging system,focus on the battery connections and the grounding as this is often the cause for problems.
Answered by trond hansen on January 28, 2021
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