My car wont stay started after i had unplugged and re plugged battery..

Asked by Oct 08, 2015 at 02:17 AM about the 2006 Hyundai Sonata

Question type: Maintenance & Repair

well my oldest unplugged the battery to change a head lite bulb . yes i know ..anyways now after reconnecting. car wont stay started.. dies .

8 Answers

685

Don't understand "Unplugged the battery", do you mean "disconnected"? The battery only starts the car, once started the spark plugs derive spark from the alternator. If the car starts, its a good chance the batter is good and hooked up correctly. However, she may have disconnect another wire that leads from the alternator to the coil pack (which sparks your spark plugs). Look for any more disconnected wires from the alternator to the coil

ok after she reconnected the battery, started the car, it ran for like 1min then died. and while its running.. it very loopy/runs ruff at times

83,405

It sounds like it didn't complete the reset procedure, I would try disconnecting the battery again then turn the headlight switch on, doing this drains the capacitors and clears the ECM memory, the longer you can leave it the better, but it has to be disconnected for at least a minute, turn off headlight switch and reconnect the battery, on some vehicles this will set off the alarm if equipped, so make sure you know how to shut it down before performing this procedure, start engine and drive as you normally do for about 20 minutes, this will relearn the ECM as to vehicle and how it is driven. HTH

1 out of 1 people think this is helpful.
Best Answer

so(1) disconnect battery .(2) turn ON head lights ..wait like what 30mins? then(3)turn OFF head lights (4) reconnect battery (5) restart car . and run 20mina or so..... i dont know if she touched the bulb but i think she did.. and if it doesnt bulb lite doesnt work but car DOES.. ill repeat this from steps after i replace headlamp bulb ..pray she didnt touch it ggrr . ill get back to u..thanks

83,405

Oh man touched the bulb, and disconnected the battery, are you two going to have a talk about reading instructions? Good Luck

ok car still doing the same i guess next is map censer what i call it... off there air filter,, its a used part bout 4mths old.. acts same.. just funny it just did this at bulb changing time..

83,405

Yeah used emission parts if they are good they don't last long, is the check engine light on also?

685

Your ECM might be completely bad. If all you did was disconnect the ground and replace a headlight. It should have booted right back up with this stock programming in tact. If it only stays on for a minute you might have a fuel pump relay issue. There could be a short and the fuel pump relay is overloaded and then turns off. If you are giving it gas, does it die?

Your Answer

Add photo

Related Questions

Sonata

Looking for a Used Sonata in your area?

CarGurus has 49,131 nationwide Sonata listings starting at $1,200.

ZIP:

Search Hyundai Sonata Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Hyundai Sonata Experts

#1 toDumbToNotKnow
toDumbToNotKnow
Reputation 1,350
#2 Tom Demyan
Tom Demyan
Reputation 1,210
#3 dandyoun
dandyoun
Reputation 950
View All

Related Models For Sale

Used Honda Accord
994 Great Deals out of 75,205 listings starting at $899
Used Hyundai Elantra
655 Great Deals out of 52,805 listings starting at $895
Used Toyota Camry
1,159 Great Deals out of 97,111 listings starting at $1,250
Used Kia Optima
545 Great Deals out of 30,995 listings starting at $1,250
Used Nissan Altima
1,073 Great Deals out of 82,588 listings starting at $1,988
Used Ford Fusion
1,035 Great Deals out of 76,294 listings starting at $999
Used Honda Civic
813 Great Deals out of 70,577 listings starting at $1,200
Used Chevrolet Malibu
1,130 Great Deals out of 82,880 listings starting at $2,328
Used Nissan Maxima
380 Great Deals out of 24,381 listings starting at $999
Used Hyundai Santa Fe
295 Great Deals out of 14,803 listings starting at $500
Used Toyota Corolla
956 Great Deals out of 68,607 listings starting at $1,595
Used Mazda MAZDA6
196 Great Deals out of 15,688 listings starting at $2,400
Used Dodge Charger
467 Great Deals out of 30,103 listings starting at $2,275

Used Cars For Sale

2017 Hyundai Sonata For Sale
24,710 listings starting at $14,776
2016 Hyundai Sonata For Sale
57 Great Deals out of 4,185 listings starting at $10,477
2015 Hyundai Sonata For Sale
115 Great Deals out of 3,627 listings starting at $8,898
2014 Hyundai Sonata For Sale
88 Great Deals out of 2,859 listings starting at $8,829
2013 Hyundai Sonata For Sale
211 Great Deals out of 4,844 listings starting at $5,995