Question about 2000 Mercury Cougar

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Car battery wont stay charged

My 2000 cougar wont stay running without a jump.when it starts going out it smells like rotten eggs.

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Your Catalytic Converter is Clogged up. This is what is Causing it to not run.

Posted on Jan 20, 2009

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johnthejag
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SOURCE: car battery wont stay charged 2000 cougar

Hi

Your battery is shot, the plates inside are possibly shorting out.

New battery I am afraid.

Good Luck !

P.S. Don´t forget to give me a rating please !

Posted on Jan 20, 2009

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My 2008 chrysler will not start without a hard jump and there is a rotten egg smell coming from engine


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When running, the Navigator has a rotten egg smell and misses.


The rotten egg smell is because the engine is not properly burning and processing the fuel and exhaust gases. The first culprit to suspect is bad catalytic converters. But since you are also experiencing misfires you can probably start with a tune up. And clean the fuel injectors. You can try running some Techron through the gas tank. Then have your vehicle scanned for error codes. Most auto parts stores will scan your codes for you.

If your scan does not indicate anything and you still have the egg smell, you probably need to replace one or more catalytic converters.

Take a look at this video on how to try to clean catalytic converters before buying new ones...
http://www.youtube.com/watch?v=5icTmYItwiE

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You have a faulty battery, that's probably what killed the other alternator. The rotten egg smell is gases coming from your battery. Change the battery before you cook the second alternator.

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I think my optispark is going out but not for sure. The car will start up but will not allow WOT it will cut out or die then is hard to start back. The service engine light will stay on until it sets for...


That rotten egg smell is unburnt fuel in the exhaust. I am no expert in ignition systems but i have heard that optispark systems aren't very hardy. Try replacing the coils, wires, and plugs. If that doesn't work its time for a new distributor.

Feb 28, 2011 | Pontiac Firebird Cars & Trucks

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For the RPM's jumping up and down i would replace the throttle position sensor. If it smells like bad gas or rotten eggs these are signs that the cat. converter is going bad. For the poor gas mileage replace the fuel filter.

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Sulfur smell coming from my 2004 chevy colorado wont start unlss i jump it


You have a bad battery and it needs to be replaced. The rotten egg or sulfer smell is coming from the acid in the battery. I would not continue to jump the vehicle as the battery could explode.

Nov 08, 2009 | 2004 Chevrolet Colorado

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Car runs rough when it does run. then in about 5 miles it just dies no power at all? the battery is new so is alt. new plugs and wires ? it just dies and needs a jump. soon as its off it wont start again...


Have your mass air flow sensor cleaned/serviced., then your catylictic coverter.you can chk but takes two people. one at the tailpe and the other at the key. The moment the engine is turned of, the exhaust shout stop.Using a tissue see if the exhaust continues bet in a drifting manner. Note any odor of rotten egg or sulphur smells. Listen for ant wheezing coming from the tail pipe while the engine is running. This is rhe more probable cause. Good luck -Ned

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99 mercury cougar


Rotten egg smell??? Thats smell could be either from a bad 02 senser or a totally clogged catalytic converter...not terribly expensive to replace. As far as the engine shaking, and it not going quick out of the stop light, I'd pull my tranny dipstick and smell the fluid and check for a buring smell and or the color. You want it to be a light red color. You may have an internal transmission issue. You said you got "fluild" out of your tailpipe, was it just water, or was did it have a scent to it. You really should have the car checked out, with those symptoms that you listed you could do more damage by still driving it that way.

Mar 26, 2009 | 1999 Mercury Cougar

1 Answer

Engine light


The "rotten-egg" smell is caused indirectly by the catalytic converter. The main cause is a rich mixture condition from the engine. Your SUV is equipped with a computer controlled engine management system. You can scan your computer for fault or error codes. The information should pinpoint the malfunctioning components. There is an alternate reason for the rotten egg smell. this also can be caused by a over charged battery. if so, make sure the alternator isn't overcharging the battery cell. it will boil the contents causing the egg smell. I recommend a diagnostic run to make sure what this problem is.


please rate and god bless.

Mar 17, 2009 | 1999 Dodge Durango

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Car battery wont stay charged 2000 cougar


Hi

Your battery is shot, the plates inside are possibly shorting out.

New battery I am afraid.

Good Luck !

P.S. Don´t forget to give me a rating please !

Jan 20, 2009 | 2000 Mercury Cougar

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