WTF!?!

[i_love_my_stang]

so i pulled off the upper intake manifold to change the pcv, and since i was in their i cleaned up the manifolds with some carb/intake cleaner, put a monifold spaker on and put everything back together, now that car wont run it barly idles, poofs white smoke, and the cats/floor boards get really fucking hot, seems like a plugged cat but how could that just happen? help please

 

[2slo95fiveoh]

so i pulled off the upper intake manifold to change the pcv, and since i was in their i cleaned up the manifolds with some carb/intake cleaner, put a monifold spaker on and put everything back together, now that car wont run it barly idles, poofs white smoke, and the cats/floor boards get really ******* hot, seems like a plugged cat but how could that just happen? help please

did you mean manifold spacer right there? as far as your running problem, did you spray all the cleaner
down the lower intake while it was on the car? maybe all the gunk got down into the cylinders and
is causing bad running problems.

 

[i_love_my_stang]

ya i put a ford racing spacer on, and ya the lower manifold was on the car, but why would my exhaust be really hot? also my brakes are really hard to press?? man i effed it up good :crying:

 

[Jrgunn5150]

Your brakes are hard to press because you are probably not getting vacuum to your master cylinder.

 

[95 svt cobra]

yeah i read somewhere, and a guy that my dad works with his son has a 95 GT. his son did the same thing that you did, he cleaned all the oil coating out of his intake, that rust color looking stuff. apparantly that is some kind of emmision control thing, im not entirely sure what it is but i asked a ford tech and they said that its possible on some models. My car has it, so theres a chance as well that maybe you removed this coating somehow. IDK IMO its just a though

 

[i_love_my_stang]

what i cleaned looked like a carbon build up, i dunno im gonna pull them off again and check everything out, i think my cats are messed now too, cuz their running really hot

 

[Jrgunn5150]

You just blew all the crap into the motor, drive it for 20-50 miles and see how it is then.

 

[LAFENATU]

so i pulled off the upper intake manifold to change the pcv, and since i was in their i cleaned up the manifolds with some carb/intake cleaner, put a monifold spaker on and put everything back together, now that car wont run it barly idles, poofs white smoke, and the cats/floor boards get really ******* hot, seems like a plugged cat but how could that just happen? help please

Absolutely 100%....Vacuum leak.

Hose that could have gotten left off, hose that cracked, etc.

Start the car, let it idle, spray carb cleaner around the motor, when you hear the rpm's raise, BINGO - you found your leak. :thumb:

 

[95 svt cobra]

yeah, check your hoses, esp the on that goes into the lower manifold cause its easy to think that is plugged in when its not. thathappened to me when i did a head gasket change. the fact its idling bad strongly suggests a vaccum leak. if you possibly broke the t fitting for the vaccum hoses in the manifold it is a 3/8 x 3/8 x 1/4

 

[Mr. OAM]

Of course a vacuum leak is always possible with every disassembly/assembly.


You sprayed carb cleaner into the engine without it running. This means while you cranked the engine raw cleaner and all the gunk it took with it coated your intake valves and also went into the cylinders without getting burnt. Your sparkplugs may need to be changed as they will not like being wet with this stuff. Also while cranking the engine before it started some of this cleaner/gunk mixture got pumped back out the exhaust and into the cats once the engine did start. This may be causing the floorboards to get hot.

Carb cleaner/ throttlebody cleaner is meant to be sprayed on the throttle plates with the engine running so that it and the stuff removed can be burned in the engine. I don't know if anything may have happened to your piston rings or not. That would be a worst case scenario though.

I would change the sparkplugs so that they can fire the cylinders really well. I don't know about the cats. If it gets to running pretty well you may want to try spraying some PB Blaster into the running engine as well. I would check first to see if it would be ok with the sensors. I don't know if carb cleaner will do anything to the sensors if it gets on them raw.


Good luck,
Steve

 

[i_love_my_stang]

took the cats off and ran the engine with straight headers works fine now

 

[vettekiller3]

if you can get it to run by pedaling it than go to an auto parts store like advanced and buy two cans of this stuff called seafoam. pour one can into your gas tank and the other pour slowly into you intake while the enigine is running . once youve poured it all in turn the car off and let it sit for about 5 min then start it and go for a drive make a couple of WOT runs and see if that helps that will get ride of all the carbon and gunk build ups anywhere in the induction system. sounds "bootleg" but trust me i did it to a buddy of mines 89 mustang with 150000 miles on it and it felt like a new car afterwards. Oh ya and btw when you do this its gonna smoke out the tail pipes like go go gadget smoke screen. this is normal though thats all the carbon and sh*t burning. trust me :thumb:

John

 

[ScottyDsntKnow]

I hope he's heard all the seafoam horror stories out there too.

 

[sick_stang302]

im having the exact same problem
also, id like to here the bad side of seafoam

 

[topless95]

First of all, dont make fun of me for saying this. Go to a local GM dealership and ask for TOP Clean, but be prepared for a ton of smoke. This stuff will cut through carbon build up like no other product I have seen. I helped a friend get his 56 chevy runnin last night, and after 4-5 years of sitting we got her running and he used the top clean and it ran almost like new after that.

 

[topless95]

Actually it is called GM Top engine clean and the GM part number is 1050002