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Old 12-10-2005, 01:29 PM
82-T/A 82-T/A is offline
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Water in gas?????

Hey guys, can anyone tell me what the symptoms are of water in the gas?
I think it might be my problem. The tow truck driver mentioned it to me...

I posted this on another web site, and this more or less explains the status of my car right now:

--------------------------------------------------------------

Ok, I was taking my wife to dinner, and I was driving on the highway at about 65-70 miles an hour in cruise. Suddenly, the car started to act weird, and it slowly lost power. It didn't sound as if there was anything wrong with the motor mechanically, it just started to lose power, and run very harsh. I was able to keep it going for another 15 miles and then it just died. I was unable to start it. After 30 minutes, it started up and idled horribly.

I had it towed home, and now it idles perfectly fine, but over 1,500 rpms, it hesitates, runs really rough sounds almost like a grinding noise (but it's not) and then dies.


The car in question is a 1997 Pontiac Grand Am GT Sedand
2.4 TwinCam
4T60E Automatic


This is what I've replaced so far:

- Ignition Control Module
- Oxygen Sensor
- MAP sensor
- Fuel Pressure Regulator
- Fuel Filter
- Spark Plugs
- Vacuum lines
- Removed, cleaned and re-installed throttle body and intake manifold.

I checked the fuel pressure and at idle, it's a consistant 40psi.


There is steam coming out of the exhaust, but it has been sitting 6 months in this condition and only now have I let it warm up long enough, so I don't think it's a blown head gasket because the temperature is normal.


Anyone have ANY idea what it could be?

I do NOT have a check engine light on right now.

When my car first stalled though, I checked the codes and it said it had a Multiple Cyl Misfire.


Thanks!
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  #2  
Old 12-10-2005, 01:58 PM
FieroSpeeder FieroSpeeder is offline
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see if your cam timing is correct.


drain some fuel and add some water to it. If it absorbs some water then you know, the concentration of water isn't high.
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Old 12-10-2005, 02:06 PM
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The timing chain tensioner on the 2.4L Quad Cam engines is pressurized using engine oil. These engines are VERY sensitive to dirty oil and as FieroSpeeder says you should check the camshaft timing. You can check it fairly easily by pulling the valvecover off the engine.

With the Quad4 (also known as Quad Cam) you should never go more than 3000 miles on your oil unless you are running synthetic.
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Last edited by Daniel Wood; 10-09-2011 at 09:37 PM.
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Old 12-10-2005, 03:19 PM
dougbfresh dougbfresh is offline
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Last time I got a tank of water (about 6 weeks ago), it ran bad on startup, threw all kinds of weird OBD codes and then smoothed out after I ran awhile. When it sits, the gas and water should seperate with the water on the bottom making startup "rough". As you ride around, the 2 intermix and you get more gas and less water and the engine should run better. As soon as I ran the tank low, I filled up with Shell Premium and no more codes. How close are you to finishing the tank? Sounds like you have another issue or you have ALOT of water in the tank.
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Old 12-10-2005, 04:59 PM
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If you think it is a bad gas (water in the fuel) you could use some "HEET" gasoline dryer. If you decide to try this remedy, use the HEET in the red bottle. The red bottle uses isopropl alcohol, the yellow bottle uses methanol. Don't use the yellow bottle.
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Old 12-10-2005, 06:14 PM
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also check your egr valve, sounds to me theres more then one thing here that maybe cause trouble. I would try a bottle of heat as describe above. Then if the engine still runs poorly then I would check the egr valve. Then maybe injectors or the whole fuel delivery system including fuel pump relay. Take pressure tests and make sure your getting a good flow of fuel. Make sure the fuel pump is keeping pressure and flow up to specs. Sometimes the gas cap can have a bad seal when you tighten it which can cause trouble or even vapor lock.
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Last edited by justen; 12-10-2005 at 06:30 PM.
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Old 12-10-2005, 06:39 PM
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I was going to suggest the EGR. 98+ Quad4 engines do not have an EGR.
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Last edited by Daniel Wood; 10-09-2011 at 09:27 PM.
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Old 12-10-2005, 08:52 PM
TheHarleyMan2 TheHarleyMan2 is offline
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Quote:
Originally Posted by carsandcycles
If you think it is a bad gas (water in the fuel) you could use some "HEET" gasoline dryer. If you decide to try this remedy, use the HEET in the red bottle. The red bottle uses isopropl alcohol, the yellow bottle uses methanol. Don't use the yellow bottle.

Instread of paying higher prices for HEET, just go to the grocery store or Wal Mart store and get a big bottle of Isopropl Alcohol about a $1.00 or less. I had water in my gas tank a few years back and since then 3 times a year to help prevent getting a little bit of water from the fuel tanks and gas stops I pour 1 big bottle into the gas tank.

The process of the isopropl alcohol is that it will go directly to the water and evaporate.

Just my $0.02
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Old 12-10-2005, 11:12 PM
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In the winter, when temperatures fluctuate, fill up with gas that has ethanol added to it. Do that regularly and the alcohol will absorb any water you might get in the system.

Also, keep you gas tank full - less room for condensation.
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Old 12-11-2005, 12:21 AM
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Are you loosing coolant? Is the coolant level going down?
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Old 12-11-2005, 01:34 AM
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On a 97 he will have a egr valve. On the 2.4L 146cid L4 MFI (T)

Check these things out, and let us know what you find out.
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Last edited by justen; 12-11-2005 at 01:37 AM.
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Old 12-11-2005, 10:29 AM
82-T/A 82-T/A is offline
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Quote:
Originally Posted by justen
On a 97 he will have a egr valve. On the 2.4L 146cid L4 MFI (T)

Check these things out, and let us know what you find out.

Hi, it does have an EGR valve. DO you think that's it?

Wouldn't it give off an error code though?

Thanks!

Todd
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Old 12-11-2005, 10:34 PM
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Not always will you get a code. He may have some pending codes that haven't matured yet to turn on the check engine light. But sometimes you always don't get a code. Especially if the sensor it's self thinks it's in working condition. It wouldn't hurt to clean the connectors and try it, and If he wants to go further with it, pull it off and see if the diaphram is working and not all carboned up. But then again, I'm just throwing suggestions to what it could be. I don't know for sure or not if it's egr valve related or not. But I would run down to a auto store and tell them hook me up. And see if they can pull some pending codes. It would make the search easier.
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Last edited by justen; 12-11-2005 at 10:38 PM.
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Old 12-16-2005, 12:12 AM
lindseyangell lindseyangell is offline
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When in doubt

When you are in doubt about gas it is really cheaper to just siphon it out, then add several gallons of gas to the tank. You see all sort of people buying HEET or HEAT for their gas tanks, when all you really have to do is use Ethanol Gasoline...ours if 10% here in Kansas an sit is actually cheaper than regular. I use it all the time in my Windstar SEL and I have NEVER had a problem with the injectors or fuel system in the past 6 years!
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Old 09-28-2011, 02:45 PM
eddiekat1952 eddiekat1952 is offline
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I have a 2000 Blazer. I got a small amount of gas and then the car started acting as if it would not accelerate. The next day, it would slow down and then speed up (within 4-5 mph). When I got home, it was really bad. It would lunge and bog down. I stayed home from work to find a mechanic (without any luck) to check it out that day. I drove a short distance, and the car was so bad that it made a very loud noice and would not accelerate over 15 mph. I drove with my flashers on. On the way home, it was lurching and lunging and would not go over 15 mph. Then suddenly it sped up and has been fine ever since. I called my mechanic to cancel my appointment, and he told me that I may have had water in my gas.
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