I have an 07 malibu that wont start, isnt even turning over. Happened once before, so I drove my truck Instead. Came back and it fored up and hasn't given me trouble until now. Hasn't started for 2 days. I checked fuses and replaced a couple relays. Fuel pump is kicking on. Put a new battery in to no avail. My inner mechanic says ignition switch, but he also says its probably some bs sensor or security issue. Any help would be greatly appreciated.
Ignition switch or neutral safety switch are two areas I would test . Try cranking it in neutral . Check for power to the starter and a crank signal at starter solenoid .
The chargn wire frim alternator to batt is problyworn or theres some connection issue. Take a jumprcable wire n put it in place as a test. Also check undr engine fusebox. for burnt wires. Car is old may need scan and new ignitionparts cause theyr worn n gittnhot
Try rotating engine by hand first. If it rotates proceed to next step. After verifying battery and battery cables condition, check voltage at the starter solenoid small wire while someone tries to start it, if power is ok and still doesn't crank, replace starter. If no power is present while trying to start it, trace back to relay and ignition switch.
Check your battery terminals and battery.
If the terminals are corroded or loose then this will happen.
If need be, remove the terminals from the battery and clean thoroughly both terminals and terminal clamps. Fit them back on and tighten.
Try starting the car, if it starts and all is good, spread vasoline, or some grease over the terminals to prevent it from corroding. If it doesn’t start then the battery will need replacing. If you have a multi meter check the voltage first. Anything under 11.5 volts will not start this car.
SOURCE: 02 Blazer wont Start, Passlock?
I had the same problem when I replaced my multiswitch. I set off the "passlock 2" system that my blazer was equipped with because I didn't disconnect the battery before I took out the bad switch and put in a new one. That ended up blowing a fuse labeled "TBC." Its located in the fuse box in the engine compartment. Its a 10 amp. I know you said you checked all the fuses, but I would double check that one.
SOURCE: fuel pump still not working
I had the same proplem, remove spare tire and on the crossmember above it,left side, there is a fuel pump drive module. Mine was corroded and got moister in it .replaced it and runs fine. dealer price 110.00 dollors
SOURCE: 97 chevy 1/2 ton 5.7 vortec truck won't start
remove the shroud around the steering lock ,then with a meter locate the feed ,then the 12v when ignition turned on then with a suitable paperclip or piece of wire turn the igniition on and then from the 12v supply apply a supply the other connection for the starter motor and try that ,if it starts ok then renew the ignition switch ,if it doesnt start its the electronics
SOURCE: My son's 2004 Kia Optima started stalling on the
Start with the simple and replace the fuel filter. The fuel filter should be replaced every 15,000 miles or once a year to ensure the fuel system is running 100%. Auto Zone will have the fuel filter and can give you the step by step instructions to getting the job done with common tools. If it's the fuel pump failure, you have not gotten the car restarted. Good luck and keep me posted, be glad to know you got your car running 100% again soon and please rate.
SOURCE: 1995 nissan pickup truck fuel problem
Fuel injected or carb? Make sure fuel line itself is clear. Some pumps are designed to self regulate (carb systems) some continually pump and a psi regulator sends back the excess fuel back to the tank (fuel inj systems) If the line is obstructed then pump can't deliver fuel fulltime.
If you think pump is not on consistent, try running a dedicated wire through a switch directly to the pump. If it works then you are looking for an electrical fault going to pump. Good luck.
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