: removing carburetor cover 1986 fleetwood brougham
03-31-11, 03:37 PM
I am new to this forum and need some help. I pulled the codes from the check engine light and it gives me TPS problem. It has been recommended to me that I clean the carburetor and TPS. I am attempting to open the carburetor and after removing all sensors and screws it wont come off.
My question is, is there some hidden screw or connection I am missing or is it simply difficult to remove because it is so old and probably never been removed? Thanks in advance.
03-31-11, 03:39 PM
There are a couple of screws inside the throat of the carb. Did you get those ones?
03-31-11, 03:51 PM
No, I didn't. Thanks. The code it is giving me is 21... TPS out of range. All I am trying to do is get it smogged and it can't be with check engine light on, is cleaning the TPS and carburetor how you proceed?
03-31-11, 04:07 PM
Outsider...I removed those screws and the cover still wont budge. How hard can I pull/bang/tweak to get it off? Any ideas?
03-31-11, 04:08 PM
Don't think you can clean the TPS. I think you'll need to replace the TPS.
It's a pretty easy job. You pull that top off, stick the new TPS in, close the carb back up, and then you have to adjust the TPS. (your TPS might just need to be adjusted, too. SO maybe start there)
To adjust you need to backprobe the tps connector (or build a little testing harness like I did with an extra pigtail connector.)
There is a little plug in the carb that you need to drill and pull out, then you need a little socket tool to turn the adjusting screw. If I can find one of my old posts that had some info I'll show you.
03-31-11, 04:14 PM
Those are some of the threads I posted back when I was having carb/TPS problems. I hope they help. At home I have some carb pictures that show more details on adjusting I can post for you.
03-31-11, 04:18 PM
oh, and to answer your question...you don't want to pull hard or pry hard on that cover. It should come right off once all the screws are removed. There's quite a few screws to remove if I remember correctly. When I get home I'll try to post them pics and it should show you.
03-31-11, 04:29 PM
Thank you so much. I look forward to hearing back from you.
03-31-11, 06:55 PM
dang I can't find the pictures I was looking for but if you search the forums you might find more info! i know i posted them here once
Make sure you get the two screws in the front barrels down by the venturis. They are easy to miss. There are two more screws behind these in the center of the carb holding down the top baffle on the top of the carb. After my carb struggles recently, (mixture control solenoid died) I highly recommend one or more books on the quadrajet. They were invaluable. If you can find a shop service manual for your Caddy, there will be an excellent section on your carb, diagrams, troubleshooting. It's worth what it costs you to buy.
04-01-11, 01:06 PM
so I went down in the basement and found my old q-jet. here are some pics.
This first picture is the TPS adjusting screw. You will probably have a cover over it. take a drill with a small bit and drill into it carefully, then thread a screw in and yank it out.
red circles are the 13 screws holding the top down, blue circles are extra screws you should remove to free up the linkages.
After that, the top should pop right off.
04-05-11, 09:38 AM
Just wanted to know if you had any luck with this.
04-05-11, 08:46 PM
Yes and No. It went well after I installed the new TPS, the check engine light went off, but after about 10 minutes it went back on giving me a 2-2 code. Opened up the top again and realize I didn't secure the wires and they were synged. Now I have a new problem. As I am installing yet another TPS, and carefully securing the wires this time (costly mistake), I dropped a pin inside the carb! It is not metal so I cannot use a magnet. I went and bought a very small grabber tool, too big. I guess my only option is to remove the whole carb, which as you can tell I am very inexperienced. Any suggestions?
04-05-11, 08:54 PM
removing the carb is easier than removing the top was...
one suggestion is to make sure you do the auto-adjust on the transmission kickdown cable once you hoook it back up :)
oh and don't overtighten then bolts on the carb or it could warp the carb or the intake.
04-05-11, 08:57 PM
Thanks, I am gonna give it a try. I really appreciate the help Outsider and Turk. I may be posting tomorrow, hopefully it will be good news.
04-06-11, 12:25 PM
i removed the two back bolts and its real loose do u have a picture of the front connections i have to take off and how. I see a big screwed in metal type hose and right below it a really hard metal hose how do i diconnect them.
04-06-11, 12:34 PM
The big metal thing is your fuel line. The fuel filter is inside of the big nut on there. YOu will need 2 wrenches to get this off. One to hold the line in place and oen to turn the nut.
Aside from that I only remember having to pull off some vacuum lines. Unfortunately my 87 is still in storage (we got a snow storm last weekend when I was supposed to go get it!) so I don't really have access to look right now. You also have to take off the 2 front bolts.
Check this site: http://forums.aaca.org/f177/quadrajets-fire-hazzard-267250.html
Scroll down and there are some good pictures.
04-06-11, 01:56 PM
the good news is i got the bolt out of my carb the bad news is i twisted off the fuel line could u send me another one
04-06-11, 02:29 PM
Twisted off the fuel line? Show me a picture. I'm not sure if I have one. If I do I can send you one. If not I'll help you find one.