TB cleaning gone bad

Post by **blind6** » Wed Feb 22, 2006 6:54 pm

I decided that today would be a good day to clean the TB and MAF , so I went and got the cleaners and got to work. Everything was working great then while I was spraying inside the TB with the butterfly open the plastic extension hose shot off the nozzle and into the plenum. So now I am currently tearing things apart trying to locate this 5in piece of ****. SO... simply a lessoned learned and hopefully knowledge for the next guy. I'll post up when it's all finished
Modified by blind6 at 11:46 PM 2/22/2006

Post by **guadofreak** » Wed Feb 22, 2006 7:06 pm

I don't even know if I would do that! LOL...

I figure if it makes it into a valve it's hot enough to melt it away right?

Post by **nuQ** » Wed Feb 22, 2006 7:34 pm

WOW!!!! sorry to hear that! on my BMW site they did warn about that same thing happening,,,thought it was a one in a billion chance!!! they did recommend putting a piece of tape on the straw and the nozzle to make sure it didn't fly off.,,,,,,,,i should have posted that (i'm honestly not trying to rub anything in!!!). if worse comes to worse,,,,might be a good time for the under plenum hoses to be changed!!!

Post by **blind6** » Wed Feb 22, 2006 8:06 pm

With the help of a good friend we found it in the number 4 runner in the lower plenum. Hoses all look pretty good. I need this car tomorrow so next project will have to wait for another day. Car is running good, just thought I'd do alittle TLC. For everyone else on the forums this is a heads up....take caution!

Post by **Ozzie** » Wed Feb 22, 2006 9:25 pm

Thanks for the warning.Muchly appreciated

Post by **blind6** » Wed Feb 22, 2006 9:36 pm

Just reassembled everything and now it is not cranking....sounded like something got bound/grinded when I turned the key? now it doesn't even crank, sounds like it is going to but stops. any ideas.....

Post by **blind6** » Wed Feb 22, 2006 10:22 pm

OK fixed not sure what we did but it is running now.

Post by **nuQ** » Wed Feb 22, 2006 11:29 pm

glad it all worked out!!!!!!! we should make it a point to let everyone know to be very careful when you attach the plastic straw to the nozzle of the throttle body cleaner,,,,especially when you it's pointed through the throttle body and into the plenum! put a piece of tape on both spots to make sure it doesn't go anywhere!!!!!

Post by **blind6** » Wed Feb 22, 2006 11:51 pm

NO kidding, I feel dumb that it happened, although you never think it would happen until it does. I just hope this experience saves some others some time and headaches in the future. This little project turned into a 6 hour task. Not sure what caused it not to start though. We manually rotated the crank a couple times and it fired right up after that. WEIRD is all I can say. Nothing like that sinking feeling when your car doesn't fire up after all those hours of work.

Post by **maxnix** » Thu Feb 23, 2006 3:23 am

blind6 wrote:Not sure what caused it not to start though. We manually rotated the crank a couple times and it fired right up after that.

Probably the left over solvent and fresh gas washed the cylinder walls clean and you had no compression. Hand turning it helped it breathe.

Post by **elwesso** » Thu Feb 23, 2006 4:43 am

Thats why I dont use the straws...... But glad you fixed it, and arent you glad you got to do your emergency plenum job?

Post by **blind6** » Thu Feb 23, 2006 12:46 pm

Wes, It was a worthwhile knowledge gaining experience so next time it should go alot faster. Update: the Q is running good today, no other hang-ups

Post by **elwesso** » Thu Feb 23, 2006 1:54 pm

how long did it take you the first time?

Post by **blind6** » Thu Feb 23, 2006 5:49 pm

I started cleaning at about 5pm at around 5:20 I lost the straw. After poking around till about 6pm trying to locate I started to take the plenum off. I finished putting it all together around 10pm. 5 hours including dinner break, sanity break, and having a beer with my friend who came over to help. Then I changed the fuel filter also and ended the night at 11pm.

Post by **texasoil** » Tue Feb 28, 2006 7:58 pm

The cranking difficulty was most likely LIQUID (the solvent) you sprayed into the intake manifold. You are real lucky the engine did not fire right away or that it did not 'get up to full cranking speed' before hydro-locking--it would have probably bent the connecting rod. Engines DO NOT like liquid in the cylinders.

When cleaning the throttle body--ALWAYS stuff a shop rag behing the throttle plate to absorb any liquid--and be sure and remove the rag!

Post by **Q45tech** » Wed Mar 01, 2006 1:16 am

A [individual] Q cylinder will require 60+ cc [2+ ounces] of liquid to hydrolock............why BG uses SMALL spray cans of TB cleaner [doesn't evaporate fast]. By the time you coat all the plenum wall and runners and some quasi equal distribution no chance of enough single cylinder build up - by design.

Hard work to get the brass throttle plate perfectly clean [inside and out].

Don't feel bad once lost a spray straw in my oil drain hole........still in there after 159,000 miles.

Post by **blind6** » Thu Mar 02, 2006 12:28 am

Q45tech wrote:Don't feel bad once lost a spray straw in my oil drain hole........still in there after 159,000 miles.

It's a relief to hear that it's just human error.......

Post by **defrag010** » Fri Mar 03, 2006 11:21 pm

I have a similar story that happened to me on my '90 talon tsi fwd..

I had just put the brand new 2g/bigrod motor in there, and I was filling it all with fluids. All I had left to do was to bleed the clutch and fill the tranny with synchromesh.The tranny fill hole is at a wierd location, and I kept the little nippe cap on top of the synchromesh bottle spout so that no liquid would leak out as I positioned the bottle into the awkward angle.Well, I'm a klutz and as I was moving the bottle around the little nipple cap fell off the synchromesh bottle and fell RIGHT into the fill hole.. it was a total swish.I ended up having to Drop the tranny and Totally disassemble it to get the little cap out.

Talk about kickin' yourself in the ***!!!

Post by **blind6** » Sat Mar 04, 2006 5:43 pm

Yeah, that sounds alot worse than what I had to deal with.

TB cleaning gone bad

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