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confused one
Dodge Dakota
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4/22/2005
00:31:55
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 Subject: ATF in my fuel?
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Message:
I haved tried the search and cannot find anything.
I have a 98 3.9 sport.130,000 miles.It runs like
crap and engine light comes on.#6 cyl. missfire.
I have checked the comp.#6 had 180 psi.I have
replaced the bellypan gasket,rotor,cap,plugs,
wires,IAC motor,intake manifold temp sensor,and
the o2 sensor before the cat.The gas milage is
between 15&16 mpg.THE ONLY THING that improves
the problem is putting one quart of ATF into
the fuel tank.The engine light will turn off,and it will idle cleaner.WHY ATF? And what the
heck is it doing?
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Dean
Dodge Dakota
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4/22/2005
00:38:33
|  RE: ATF in my fuel?
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Bad injector? Bad spark plug? Bad plug wire? Vacuum leak by #6? If its always #6 the problem should be pretty obvious. I have no idea why ATF would make it run better but you will ruin your catalytic converter eventually, not to mention foul up the plugs doing that.
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another mark
Dodge Dakota
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4/22/2005
01:05:36
| RE: ATF in my fuel?
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This has got to be an April Fools that's late.
ATF to me means automatic transmission fluid.
What do you mean when you say ATF?
Am I completely missing this or are you just insane?
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confused one
Dodge Dakota
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4/22/2005
10:39:08
| RE: ATF in my fuel?
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Thats right I mean automatic tranny fluid.
I have also swapped the #6 injector with the
#2 injector with no results.The problem is not
obvious or I would have fixed it.Whatever the
ATF is doing to the motor,or sensors,is were
the problem could be.It also has new intake
gaskets.Seafoam also works,but costs way more money.
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Dean
Dodge Dakota
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4/22/2005
10:53:51
| RE: ATF in my fuel?
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If you're sure it's not an ignition problem, then that cylinder must be lean...how is your fuel pressure? Make sure it's not a cracked spark plug that is intermittent, or a bad wire. They can be very hard to diagnose. I have seen plugs that looked perfect but either wouldn't fire cold or wouldn't fire at all. Make sure the connector in the wire hasn't pulled back from the boot and is actually capturing the spark plug end as well as the terminal on the distributor. Make sure your fuel pressure is within spec both hot and cold. Just a few more ideas for you to try.
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93dak4x4
Dodge Dakota
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4/22/2005
11:16:54
| RE: ATF in my fuel?
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does it ping? you could have heavy carbon build up in that cyl causeing it to hold heat leading to pre-ignition. try running a tank of premium fuel....it will be expensive but it might prove that your problem is with heat. (premium's higher octane rating will take more heat and pressure before it ignites eliminating ping) but the missfire could be a knock sensor saying that detonation is occuring in that cyl and that is bad for power, mileage and the mechanical components.
you could try pulling out your spark plugs and putting seafoam in the holes and let it sit, then with the plugs still out turn the motor over to get rid of the seafoam (you dont want to hydrolock the motor)
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confused one
Dodge Dakota
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4/24/2005
12:46:42
| RE: ATF in my fuel?
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This discusion has been around among my co-workers
and some auto mechanics.The new idea going around
is that the ATF in the fuel is lubricating and/or
cooling down the fuel pump,and in return making
the truck run better when ATF is added to the fuel.Does anyone else buy this?It would be a very
expensive(oops that wasnt it).There is no pinging
never has done that.I have run mid grade fuel in it most of its life.Does the pump idea sound
logical?To me its yes and no.
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what?
Dodge Dakota
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4/24/2005
17:38:38
| RE: ATF in my fuel?
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Message:
ATF in fuel???
I laugh at you!
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Billy Bob
Dodge Dakota
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4/25/2005
02:04:06
| RE: ATF in my fuel?
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water in te fuel/tank?
people add atf to deisel fuel to remove the water all the time. is that what the atf is doing in this case?
been getting gas from same station?
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vern
Dodge Dakota
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4/25/2005
07:19:04
| RE: ATF in my fuel?
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confused-have you tryed a vaccumm check?
this little test can tell you alot,
how things are with the valves,if the vaccumm is stable or irregular or if theres a vaccumm leak etc
sounds like a vaccumm leak and the atf is helping the leak some taking the miss away
was this miss there before you replaced the plenium gasket?if yes,you may have a cracked head or/and intake warped
if no then that would be the first thing i look at,intake not sealing to head in that #6 area
also think back when the miss started and think of the things you did just before you got the miss,sometimes this will lead you to the problem.
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Bob Lincoln
Dodge Dakota
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4/25/2005
08:51:35
| RE: ATF in my fuel?
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ATF is oil. I don't see how adding oil to your gasoline is solving a problem.
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Seth
Dodge Dakota
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4/25/2005
21:21:40
| RE: ATF in my fuel?
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Well you said you changed the belly pan gasket, check it again, look down into the throttle body with the throttle blades open and see if you see any oil in there, if so replace it again. Next ive seen many dakotas with this very prob. Pull off your fuel rail and see if its clogged, take a piece of mechanics wire and run through there and see if you get any trash. Next, possible intake leak. But try to two above first
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confused one
Dodge Dakota
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4/25/2005
23:44:53
| RE: ATF in my fuel?
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Message:
To vern....What type of vaccum test are you
refering to?A cyl. leakdown test?I just pulled
fuel rail off and used compresed air to blow
it out.I did not run any wire thru it.
One other symptom is that once the tank with ATF
in it is empty,and I refuel.I can go almost a
full tank before it starts to act up again.
Thinking back to when all this started I had
used a product called engine restore.
So nobody buys the fuel pump diagnosis?
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fseventy
Dodge Dakota
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4/26/2005
01:23:25
| RE: ATF in my fuel?
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ATF - Automatic Transmission Fluid.
It is an old hot rodder trick to pour ATF down the carb or even add it to gasoline to help clean out deposits in an engine. ATF has high detergent qualities. Not sure how good it really works, as the AFT should leave behind deposits of it's own. Also, poouring any liquid directly into an engine can hydraulic a pistion if you get too much of it.
Another trick is to spray water down the carb while the engine is at high idle. Also possible to hydraulic a piston here as well. I explained the water trick to a friend and he called BS. I told him to test it. Made him heat up an old greasy tie rod end I had with an aceteline torch and then hit it with a spray bottle of water. The water turned to steam under the grease and blasted it off... right into my friends face!!! Needless to say, I do not encourage any one to try this if you have no clue how it works and the posslible damage it can cause to your vehicle.
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vern
Dodge Dakota
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4/26/2005
08:57:17
| RE: ATF in my fuel?
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a vaccumm tester is a gauge that reads the suchion[cost for tester about $20]
that the engine makes when the pistons are in the intake stroke,[pulling gas,air etc]
if theres a vaccumm leak[valves,intake,gaskets etc]a test can show this,@idle the vaccumm pressure should be 15-20 with a steady needle
[just rememder if you have a performance cam the vaccumm reading maybe lower because of the valves being open longer]
the oil/water teatment that fseventy said will clean carbon from the pistons and valves,but i don,t think it will help your case
did you have this miss before you changed the plenium or intake gasket?the reason i ask is you say its on #6 the miss,by adding atf it goes away,so it sounds like fuel issues or leak in that area gasket bad,crack in intake or plenium plate this causing a lean out on #6 cyl
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another mark
Dodge Dakota
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4/27/2005
18:42:22
| RE: ATF in my fuel?
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Wow you learn something new every day. I still wouldn't do this especially if you are under warranty.
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