My car wouldn't start after I got gas, my dad tightened the battery cables and we thought the problem was fixed. Now, it won't start in general. It's not dead because my radio will turn on.

Asked by Sep 22, 2015 at 12:14 AM about the 2004 Mazda MAZDA3

Question type: Maintenance & Repair

I have a 2004 Mazda 3

2 Answers

A car needs 3 things to start: Fuel, Fire (spark) and air (compression.) ________________ FUEL: Check your fuel pump (including the in-tank pump) and injectors. Also, the fuel nozzle, tank. Do you smell gas? Sometimes it could be a fuel pump RELAY that needs replacing. Also, check each fuse in your fuse box, and the ones (you may have) in your Engine. SPARK: Check the spark plugs and wires for good seating, gap, etc. Check the electrolyte levels in each cell of the battery. Go to Autozone and have them do a free battery/alternator test. If the battery is low, they can perform a 'slow charge' on it overnight. ...Of course, IF you can get it started! (It's probably that.) They can also plug in a "reader" to diagnose basic problems. You can buy one of these, too for future use. Check the Red wire from the battery to the starter/solenoid connections, and to the Fuel Pump (under the car.) You may have a FP in the engine too, that may need cleaning, etc. AIR: I have checked all of the above before, and my car still wouldn't start! I called a mechanic, and he took off the Valve Cover, and we cleaned it, filed it flat, and replaced the gasket, and that was it! AIR was the problem. It didn't have enough compression to do the trick. Hope that helps. HINT: With a good troubleshooter, you can avoid most of the above! *Diagnosis is 90% of the cure.

...also, sometimes a battery may turn on accessories (radio, or lights, etc.) but won't have enough juice to crank an engine.

Your Answer

Add photo

Related Questions

Search Mazda MAZDA3 Questions

Mazda MAZDA3 Experts

#1 Tom Demyan
Tom Demyan
Reputation 400
#2 Richard Boettger
Richard Boettger
Reputation 240
#3 Tracy Hooks
Tracy Hooks
Reputation 150
View All

Related Models For Sale

Used Mazda MAZDA6
186 Great Deals out of 13,416 listings starting at $1,395
Used Honda Civic
815 Great Deals out of 78,114 listings starting at $900
Used Toyota Corolla
921 Great Deals out of 66,039 listings starting at $1,995
Used Honda Accord
992 Great Deals out of 62,549 listings starting at $999
Used Ford Focus
733 Great Deals out of 52,997 listings starting at $1,299
Used Toyota Camry
1,061 Great Deals out of 72,865 listings starting at $1,000
Used Hyundai Elantra
527 Great Deals out of 41,777 listings starting at $795
Used Volkswagen Jetta
566 Great Deals out of 41,790 listings starting at $700
Used Nissan Altima
1,125 Great Deals out of 74,531 listings starting at $999
Used Subaru Impreza
200 Great Deals out of 18,133 listings starting at $1,500

Used Cars For Sale

2017 Mazda MAZDA3 For Sale
10 Great Deals out of 12,623 listings starting at $13,990
2016 Mazda MAZDA3 For Sale
50 Great Deals out of 2,415 listings starting at $10,981
2015 Mazda MAZDA3 For Sale
52 Great Deals out of 1,144 listings starting at $8,999
2014 Mazda MAZDA3 For Sale
117 Great Deals out of 2,263 listings starting at $8,100
2013 Mazda MAZDA3 For Sale
24 Great Deals out of 908 listings starting at $5,977

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.