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Tim Mohr
Tim Mohr, ASE MASTER
Category: Hyundai
Satisfied Customers: 15230
Experience:  30 YEARS EXPERIENCE, FORIEGN AND DOMESTIC, GAS AND DIESEL
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My 2011 hyudia tucson had a dead battery this morning. Now

Customer Question

My 2011 hyudia tucson had a dead battery this morning. Now it turns over but wont start
Submitted: 1 year ago.
Category: Hyundai
Expert:  Tim Mohr replied 1 year ago.

Hi, my name is ***** ***** there a antitheft light flashing on the dash, when you try to start it?

Customer: replied 1 year ago.
Nope
Expert:  Tim Mohr replied 1 year ago.

Have you had codes pulled from the computer yet?

Customer: replied 1 year ago.
Check engine and battery light are on
Expert:  Tim Mohr replied 1 year ago.

ok, have you checked for spark at he spark plugs yet, we need to see if its losing spark or fuel?

Customer: replied 1 year ago.
Engine turns over fast like its flooded
Expert:  Tim Mohr replied 1 year ago.

ok, how many miles do you have on this?

Customer: replied 1 year ago.
Reason battery was dead was interior lights were on overnight. Have it on charge
Customer: replied 1 year ago.
182000 km so120000 miles
Customer: replied 1 year ago.
Would disconnecting battery reset it to normal operating mode
Customer: replied 1 year ago.
It ran fine previous to my killing battery
Expert:  Tim Mohr replied 1 year ago.

ok, so it sounds like either its flooded, and has washed the oil off the rings, which will make it soin faster because there is no compression, or the timing chain has broke, which is unlikely, resetting the battery will not clear the flood, you must remove the spark plugs and blow the cylinders out and dry off the plugs, one thing you can try is to put the gas pedal to the floor and hold there while cranking, this is the clear flood mode, if it starts, great, if it does not, then you will need to remove the plugs,Tim

Customer: replied 1 year ago.
Ok will do
Expert:  Tim Mohr replied 1 year ago.

let me know if it starts,Tim

Customer: replied 1 year ago.
I pulled plugs dried them with a propane torch and blew out cyl.with compressed air. Still not starting and still turning over like flooded
Customer: replied 1 year ago.
Would feeding propane into the air box possibly help it fire and clear out
Customer: replied 1 year ago.
Plugs were in hreat shape just wet from flood situation
Expert:  Tim Mohr replied 1 year ago.

ok, can you pull one plug and see if they are again wet?

Customer: replied 1 year ago.
I did and they were wet again
Customer: replied 1 year ago.
Battery is still weak cause of worn out charger
Expert:  Tim Mohr replied 1 year ago.

Ok, then the next step is to check compression, do you have a compression gauge?

Customer: replied 1 year ago.
No i dont. Compression is still down cause of flood
Expert:  Tim Mohr replied 1 year ago.

we need to see if adding a teaspoon of oil into each cylinder brings the compression up, can you get a gaige, most parts houses like autozone and oriellys will loan you one?

Customer: replied 1 year ago.
try oil in cyl. K
Expert:  Tim Mohr replied 1 year ago.

we need to check the compression, and then add a little oil in each cylinde and see if the compression comes up?

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