Question about Hyundai Sonata

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Fuel leak when full - Sonata Hyundai Cars & Trucks

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May have to remove the fuel tank to find it

Google the question & see if there is something
that happens on that vehicle

Posted on Mar 25, 2014

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Posted on Jan 02, 2017

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It bogg down on full throttle and gas leak on top of the tank while running


if you have a fuel leak from top of tank then it could be a fuel line or O ring leaking, which can cause a drop in fuel pressure causing it to bog down. if its a steel fuel tank the tank could be rotted out. either way fix fuel leak first and go from there.

Aug 12, 2015 | Cars & Trucks

1 Answer

Codes po175b


system too rich bank 2. possible causes: damaged or leaking fuel pulse damper or leaking fuel injectors or fuel line restriction or fuel rail sensor bias or damage to the maf sensor or oil contamination or evap cannister purge valve is leaking when the cannister is full

Sep 06, 2013 | 2001 Lincoln LS V8

3 Answers

My car won;t let me put gas in it


maybe it is full! usally the pump will click off when it is full! ,gauge says full whats matter?

Dec 14, 2012 | 2001 Toyota Camry

1 Answer

Took my car in because of a gas leak and gasgauge that reads FULL all the time.. mechanic replaced the fuel pump but can't get the gas gauge to not read FULL. What to do?


If he told you the fuel pump would correct the fuel guage, take the car back and make them fix it under warranty. I have been in the auto repair business for 21 years and if I mis-diagnose a car, I have to fix it for free to keep the customer happy.

Oct 04, 2012 | 2002 Saturn L-Series

1 Answer

2000 alero smells like gasoline in the cab at start up


LOOK FOR FUEL LEAK UNDER THE HOOD IN THE ENGINE COMPARTMENT.CHECK FUEL LINES.TO FUEL RAILS.AND CHECK FOR FUEL LEAKS AT FUEL PRESSURE REGULATOR.LOOK UNDER CAR FROM FRONT TO REAR TO FUEL FILTER TO FUEL TANK LOOK FOR FUEL DRIPPING.IF YOU FIND NO LEAKS.YOUR EVAP CANISTER NEXT TO FUEL TANK FULL OF GAS OR EVAP CANISTER HOSES DISCONNECTED OR BROKEN.DONT DRIVE VECHICLE UNTIL YOU FIND FUEL LEAK.NOT SAFE.

Feb 04, 2011 | 1999 Oldsmobile Alero

1 Answer

Fuel is leaking or being forced out of the tank had a recent fuel pump replaced is it possible to have a leak after such a procedure


yes very very possible the fuel lines probably are very rusty and/or brittle and when disturbed to replace pump can develop a leak also any connections where the lines hook to tank can leak or could be top seal on tank where pump goes into tank(top seal usually only leak on a full or near full tank)

Jan 29, 2011 | 2001 Chevrolet Cavalier

2 Answers

Runs ruff at idle and when excellerating is missing


yep change the pump! and new filter too!!!

Jan 13, 2010 | GMC Jimmy Cars & Trucks

1 Answer

Car wont start. Has spark, tried Carb Cleaner.


You may be weak on fuel pressure . even a couple of lbs low on a cold start will cause a no start.
Double check cold start cranking fuel pressure. If under 63-62 lbs you have problems.
one test is to give it a squirt of carb cleaner not starting fluid. If it starts then you have a fuel pressure problem.
Run the full fuel pressure test and post back pressures.
Here is the guide lines on testing.
Hard to start cold.
Check cold start fuel pressure.
Check engine running fuel pressure.
Check engine running on the road fuel pressure.
Then shut it off and watch for fast leak down.
Pinch off at rubber part or block off return line and check full pressure.
Later V6 and V8 gm engines should have 60-66 fuel pressure.
Cold start should be 64-65 lbs of pressure.
If you do not have full fuel pressure on a cold start the injectors will not squirt fuel.
Do not leave home without it.
Engine running should be 60-66 lbs pressure depending on engine load.
Full pressure with return pinched off should be 75-85 or more.
And if it has a fast leak down after shut off you have a leak.

The 75-85 is only a check on the capable full pressure of fuel pump.
If you can not find the rubber return line check full pressure by plugging return line or just or the true full pressure can be taken direct at the end fuel filter.
What are the pressure readings that you have done.
What are your cold start pressure readings?
Post back what you have. Good Luck

Dec 24, 2009 | 2002 Chevrolet Blazer

2 Answers

On cold mornings, will not start and just "turn over" replace fuel pump and complete tune up ..still the same problem


You may be weak on fuel pressure . even a couple of lbs low on a cold start will cause a no start.
Double check cold start cranking fuel pressure. If under 63-62 lbs you have problems.
one test is to give it a squirt of carb cleaner not starting fluid. If it starts then you have a fuel pressure problem.
Run the full fuel pressure test and post back pressures.
Here is the guide lines on testing.
Hard to start cold.
Check cold start fuel pressure.
Check engine running fuel pressure.
Check engine running on the road fuel pressure.
Then shut it off and watch for fast leak down.
Pinch off at rubber part or block off return line and check full pressure.
Later V6 and V8 gm engines should have 60-66 fuel pressure.
Cold start should be 64-65 lbs of pressure.
If you do not have full fuel pressure on a cold start the injectors will not squirt fuel.
Do not leave home without it.
Engine running should be 60-66 lbs pressure depending on engine load.
Full pressure with return pinched off should be 75-85 or more.
And if it has a fast leak down after shut off you have a leak.
Post back fuel pressure readings.

The 75-85 is only a check on the capable full pressure of fuel pump.
If you can not find the rubber return line check full pressure by plugging return line or just or the true full pressure can be taken direct at the end fuel filter.

What are the pressure readings that you have done. Good luck and hope the fuel pump is not a bad one you put in there, it's know to happen.

Dec 23, 2009 | 2002 Chevrolet Blazer

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