O2 huh? well i just got home to i'll go and try that, should i disconnect the positive wire from my battery as well or just unplug the O2 sensor?

 

alright unplugged the O2 sensor plugged it back in went for a drive, it improved a tiny bit, but when i get into the higher rpm's or when i push on the gas petal even more it like starts to get sluggish and shifts a lot harder...what i'm going to do right now is unplug all sensors and disconnect the battery cable. i also checked my antifreeze and when i opened it up, it was frothy white? is that normal? or just low coolant?

 

[Double Post]

 

Your coolant is frothy white?!! That sounds bad. You may have oil in your coolant then... If this is the case, you might be looking at a head gasket. It may be worth draining the oil to see if it resembles something other than plain engine oil. I hope I'm wrong about this.

 

Alright talked to my mechanic friend (the one that is going to bring home his scanner this weekend) and he looked at it and he thinks its my coolant sensor. He said it's dumping a lot of extra fuel into the engine because the sensor is out of whack. He explained that if the sensor is blown, it could read -40 degrees and it's trying to compensate by adding more fuel to warm it up, but with the current temp. of around 70 degrees it doesn't need to happen. I'm going to drain the coolant from the radiator tomorrow and see what comes up. Haha it kind of makes sense about dumping extra fuel into the engine because it's flooding it. I look on it now and kind of feel dumb..but we shall see. and I hope it's not a head gasket....that'd just be a major pain in my !*@ but we will see i'll start draining tomorrow got no class or work! ^_^

 

Me personally, I'm not sure I agree. I suppose it's possible though. A rich fuel mixture actually burns cooler than a lean mixture, but the engine does run rich when the engine is cold.

I hope for your sake he is right though, because that would be a much easier fix.

 

I have been reading your post.

My 92, 351 was doing the same thing. I had just rebuilt the engine a year ago so I knew that it was good along with the plugs, wires, etc. I did not however change my coolant temp sensor or air intake sensor. I just had the excat same problem your are describing and it was my coolant temp sensor. Changed it and the engine idle and performance smoothed right out and the incredible rich fuel stench dissappeared.

Hopefully that is all it is for you.

 

Forgot one thing though. My coolant was not frothy white...that would concern me.

Good luck.

 

i know i opened it up and was like huh?!?!?!!? i have added some water and stuff to the coolant before as well...i know 50/50 "AND WATER!?!?!!?" what my friend said, he told me to check thermostat as well...so tomorrow thats on my list of things to do...anyways thank you 1992forever and skyfox10 for your guys' help on this. Being 18, in school, and working, it's hard to try and diagnose these things with stupid classes in my way!!!

 

I checked my oil earlier and has absolutely no signs of coolant in it, and it doesn't seem to be the beginning stages of a blown head gasket. doing a coolant flush tomorrow to make sure

 

I know exactly what you mean. I've been there too.

I'm glad to hear that, I don't wish that on anyone. Hopefully it's just some mild contamination of the coolant and a flush is all it needs. Keep us posted on what you find with the temp sensor.

 

hey guys, my agenda for today is coolant flush, i'll use some steel seal in there as well just in case, and a new coolant temp sensor. i'll keep ya posted

 

Flushed the Coolant system, and replaced Coolant Temp Sensor. It seems a tad better, but I can still notice a difference so I do not think that was the problem...Head gasket is fine though!! lol both oil and the coolant was clean and as for the frothiness, i may have looked at it and thought otherwise but it's good.

 

I wish I had been home to catch this before it happened. Any type of radiator stop leak is generally a bad idea. I wouldn't touch the stuff. It can build deposits on the inside of you radiator and engine block that can cause problems.

 

Haha then I guess we both got lucky then, because i tried looking for some and couldn't find it. I didn't want to use anything else so I just went on without it! ^_^ Psychic baby! woo!