What else I should do about my car not starting?
Asked by Guru9TPW3F Mar 27, 2021 at 05:22 PM about the 2010 Nissan Altima 2.5 SL
Question type: General
I've changed the starter, ignition coils, and had the
alternator rebuilt and the car still won't start. What else can
I do?
3 Answers
What are your symptoms? When a car doesn't start, it's always best to perform some tests before replacing parts, like checking the battery and the alternator, if it is charging properly. Then check for spark and fuel pressure. Does the car have battery power? When you turn the key, does the engine crank?
Just keep changing parts and either you will find the problem or you will run out of money. The smart decision would be take it to a mechanic,
You need to troubleshoot instead of replacing parts by guessing. First Make sure you have a good fully charged battery, check battery voltage, it should be minimum 12.4. If battery is ok, spray some quick start in the throttle body to see if it'll start for a bit, if it does, it means it's not getting fuel past the injectors but at least it eliminates spark or timing issue. Check fuel filter,check fuel pressure. If fuel is ok, check crank shaft sensor. If still doesn't start with quick start, check spark at spark plugs. If spark is ok and on time, meaning spark is on when TDC, check timing firing order, If timing and firing order is ok, do a compression test.
