MonteCarloSS.com
MonteCarloSS.com
Previous Thread
Next Thread
Print Thread
Page 6 of 7 1 2 3 4 5 6 7
#854056 - 02/16/11 01:37 AM Re: Removing the Monte Carlo SS computer [Re: Gary]  
Joined: Jul 2008
Posts: 175
wurx406 Offline
Member
wurx406  Offline
Member

Joined: Jul 2008
Posts: 175
Winter park Fl
talk is cheap pics are worth a thousand words if someone takes a picture of this stuff there probably would not be so many of the same questions posted i.e. which harness goes where and what can and can not be disconnected, I took out my harness years ago and have gone with a full MSD setup since then so i can not post pics of the harness since i dont have one anymore.

#889051 - 08/08/11 05:36 PM Re: Removing the Monte Carlo SS computer [Re: wurx406]  
Joined: Jan 2011
Posts: 469
4893fei Offline
Member
4893fei  Offline
Member

Joined: Jan 2011
Posts: 469
208
Hey,Just got my 305 rebuilt and i wanna remove the computer.Has no a/c & heat.Has turbo 350 Transmission.
I have done some reseach on removing the computer, just wanna make sure im doing it right.
-unpluged the computer -new carb and intake, distributer
And would i need a lock up kit for the transimission? Or could i just leave the wires going to the trans from the computer.
If i just left the computer in and just have the computer disconnted?? Or should i just remove the computer fully out.Maybe sell it??

#953087 - 11/26/12 11:09 PM Re: Removing the Monte Carlo SS computer [Re: 4893fei]  
Joined: Nov 2012
Posts: 13
chikissmastors Offline
Junior Member
chikissmastors  Offline
Junior Member

Joined: Nov 2012
Posts: 13
houston, tx
hello everyone, i have a question. I have a 1984 monte carlo (non SS) with a messed up CCC. I am planning to remove it and replace it with a NON CC Quadrajet and a HEI distributor. do i need a lockup kit? my mechanic says i dont but ive read everywhere that i should have a lockup kit. Any help would do thanks.

#953089 - 11/26/12 11:44 PM Re: Removing the Monte Carlo SS computer [Re: chikissmastors]  
Joined: Nov 2012
Posts: 13
chikissmastors Offline
Junior Member
chikissmastors  Offline
Junior Member

Joined: Nov 2012
Posts: 13
houston, tx
oh and one more thing i dont have overdrive

#953103 - 11/27/12 01:32 AM Re: Removing the Monte Carlo SS computer [Re: chikissmastors]  
Joined: May 2007
Posts: 4,727
Buick Runner Offline
10+ Year
Buick Runner  Offline
10+ Year
Member

Joined: May 2007
Posts: 4,727
Dharma station 1 the Hydra
If your trans is a lockup one then it will need a kit. However those afermarket kits do not work as well as the factory CCC does and more often than not removing the CCC to fix problems just creates more problems. Do you know what is wrong with your system or is it just your mechanic saying you should remove it?


SBC powered 1987 Regal with TES headers, ZZ4 intake, ZZ4 PROM chip, mini starter, THM2004R, 2500 stall converter, 2040 cam, CCC system, and 3.73 posi rear.

2008 ex NPS P71 Crown Victoria, cop motor, cop shocks, cop brakes.

Never argue with an idiot.
They will just drag you down to their level and beat you with experience.
#953115 - 11/27/12 03:01 AM Re: Removing the Monte Carlo SS computer [Re: Buick Runner]  
Joined: Nov 2012
Posts: 13
chikissmastors Offline
Junior Member
chikissmastors  Offline
Junior Member

Joined: Nov 2012
Posts: 13
houston, tx
well all my emmisions stuff is bad and corroded so he said if i fixed it it would be too much money. so he recommended to go with a non cc quadrajet and HEI. but ive been reading alot of these threads and it says i need lockup kit, but, there all for SSMC and i dont see any for the non SS monte. I know some dont have lockup but im not so sure as if i even need it

#953116 - 11/27/12 03:02 AM Re: Removing the Monte Carlo SS computer [Re: chikissmastors]  
Joined: Nov 2012
Posts: 13
chikissmastors Offline
Junior Member
chikissmastors  Offline
Junior Member

Joined: Nov 2012
Posts: 13
houston, tx
is there a way to find out if my trans is a lockup one or not?? Thanks for your input

#953140 - 11/27/12 06:11 AM Re: Removing the Monte Carlo SS computer [Re: chikissmastors]  
Joined: Jan 2000
Posts: 4,422
mmc427ss Offline
15+ Year
mmc427ss  Offline
15+ Year
Member

Joined: Jan 2000
Posts: 4,422
Pottstown, Pa
If you have a lockup converter there will be plug and socket on the left side of the TH350C transmision (lockup converter). A TH350 (non-lockup) will not have an electrical connection to it.

With your car still having a CCC system installed, and not performing correctly, you need to electrically jumper around the CCC to lock the converter.

Under the dash is ALDL connector, this is the testing point for the ECM. The ALDL ports have letter to ID them. Letter F should have a TAN/BLK wire attached to it, letter A should be BLK.
Before we go farther you should check to see if the F port in the plug has the TAN/BLK wire. Of the 12 ports in the ALDL less than 1/2 are used.
Let me know what you find.
Bob

#953144 - 11/27/12 07:09 AM Re: Removing the Monte Carlo SS computer [Re: mmc427ss]  
Joined: Nov 2012
Posts: 13
chikissmastors Offline
Junior Member
chikissmastors  Offline
Junior Member

Joined: Nov 2012
Posts: 13
houston, tx
well my car works fine except the carburetor its old. but if i get a new one i have to replace all the emissions components to have it work properly. to omit that i will be installing a non cc carb. so i was snooping around to find out if needed to add a lockup kit on a regular monte since ive only been reading about ss montes

#953265 - 11/28/12 02:59 AM Re: Removing the Monte Carlo SS computer [Re: chikissmastors]  
Joined: May 2007
Posts: 4,727
Buick Runner Offline
10+ Year
Buick Runner  Offline
10+ Year
Member

Joined: May 2007
Posts: 4,727
Dharma station 1 the Hydra
You don't have to fix all the emission components for the CCC to work right. What it needs to work right are all the sensors, carburetor, dist, and EGR. The CCC can work fine without the smog pump, cat converter, EVAP, etc. Also the CCC uses weatherproof connectors that rarely go bad. Sounds like to me your mechanic probably doesn't really understand how the CCC system operates which is all too common with mechanics these days and wants to install something he understands. Could even be he wants to sell you a load of goods, why just charge for one sensor replacement when he can charge you for a whole new carburetor, dist, lockup kit, etc. BTW what he advised you to do is also illegal since the law states you can't disable youer emissions systems which includes the CCC. You might want to seek a second opinion from another mechanic. Did he look for trouble codes?


SBC powered 1987 Regal with TES headers, ZZ4 intake, ZZ4 PROM chip, mini starter, THM2004R, 2500 stall converter, 2040 cam, CCC system, and 3.73 posi rear.

2008 ex NPS P71 Crown Victoria, cop motor, cop shocks, cop brakes.

Never argue with an idiot.
They will just drag you down to their level and beat you with experience.
#953279 - 11/28/12 03:32 AM Re: Removing the Monte Carlo SS computer [Re: Buick Runner]  
Joined: Nov 2012
Posts: 13
chikissmastors Offline
Junior Member
chikissmastors  Offline
Junior Member

Joined: Nov 2012
Posts: 13
houston, tx
yes he did. and also checked all the vaccum hoses etc most of it wasnt working at all so he recommended the use of a non cc carb. texas does not require emissions on older cars. I had the carb installed computer removed, did not need a lock up kit. works great. thank you guys for the info

#955769 - 12/18/12 06:29 PM Re: Removing the Monte Carlo SS computer [Re: 06mcss]  
Joined: Nov 2012
Posts: 607
The PC Surgeon Offline
Member
The PC Surgeon  Offline
Member

Joined: Nov 2012
Posts: 607
Salisbury Mills, NY
My 87 SS (purchased on Veterans Day 2012) Has no computer. I recently removed all the a/c components and wiring associated with the computer, a/c and heater. Man, what a bunch of wires. Car runs great without the computer, no idiot lights But gauges make up for it.
Forgot to mention, There is also a B&M lockup converter on the 200r4 Tranny.
The wire harness removed is just below the a/c delete firewall panel. I will post the harness I removed. WARNING....... If you remove the same harness I did, you will have no heat, a/c, idiot lights, blend door control, fan/defrost control. Pics coming in a couple of minutes.

Last edited by The PC Surgeon; 12/18/12 08:12 PM.
#967125 - 04/01/13 05:22 AM Re: Removing the Monte Carlo SS computer [Re: lazygearhead]  
Joined: Mar 2009
Posts: 31
Finesse615 Offline
Member
Finesse615  Offline
Member

Joined: Mar 2009
Posts: 31
Nashville, TN
I do everything on a budget so is their any vehicle I can snatch a non ccc distributor out of and use?

#967128 - 04/01/13 08:48 AM Re: Removing the Monte Carlo SS computer [Re: lazygearhead]  
Joined: Apr 2007
Posts: 1,002
carloss Offline
Member
carloss  Offline
Member

Joined: Apr 2007
Posts: 1,002
Burnaby, BC
Pretty much any GM with a small block from 1975 to 1983 or so should have the non CCC HEI distributor

#967134 - 04/01/13 11:07 AM Re: Removing the Monte Carlo SS computer [Re: lazygearhead]  
Joined: Mar 2009
Posts: 31
Finesse615 Offline
Member
Finesse615  Offline
Member

Joined: Mar 2009
Posts: 31
Nashville, TN
Thanks brother

#978256 - 07/18/13 07:17 PM Re: STICKY: Removing the Monte Carlo SS computer [Re: lazygearhead]  
Joined: Apr 2000
Posts: 155
CrimsonKrush Offline
10+ Year
CrimsonKrush  Offline
10+ Year
Member

Joined: Apr 2000
Posts: 155
Richmond,Ky. USA
Anyone know where I can get the black vacuum swith that in this pic for a lockup converter?
http://www.summitracing.com/parts/tci-376600
$90 is a bit steep for 2 switches and some wiring. It looks like the number on it is 21044 with 0711 below it but I get nothing when I Google it.


Mike Martin - '85 Monte SS
In the process of being put back together.
#997480 - 03/16/14 03:13 PM Re: STICKY: Removing the Monte Carlo SS computer [Re: lazygearhead]  
Joined: Apr 2010
Posts: 140
darriuSS Offline
Member
darriuSS  Offline
Member

Joined: Apr 2010
Posts: 140
South, NJ
Old thread but I'll post anyway.

I swapped out the 305 to a 350. Took off the qjet for a non CC carb (holley) got the tv bracket, added a shift kit and new servo to tranny. Using the same dizzy that was On car before swap. only problem i had was after riding on highway I DID get lock up in overdrive so when I came to a stop light the car stalled as it remained in a higher gear. I manually shifted all the way to trans shop. my trans guy lifted the car unplugged the lockup and I haven't had a problem since. no overdrive, I asked about trans heat he said OD only kicks it down 3-400 RPM's and it's not that much in the grand scheme of things. I trust his opinion as he builds racing trannys also and comes with a great rep in area.

Car runs STRONG but I'm thinking I should go to vacuum advance dizzy and if I'm doing some highway driving maybe add the lock up converter. Not concerned about mpg's too much though. Any opinions?

#1016558 - 11/30/14 12:40 PM Re: STICKY: Removing the Monte Carlo SS computer [Re: lazygearhead]  
Joined: Aug 2014
Posts: 236
Keithss Offline
Member
Keithss  Offline
Member

Joined: Aug 2014
Posts: 236
Jackson,mi
Resurrecting this from the deed.
I have read all this and just get more unsure.
Info
1985 Monte Carlo SS,removing engine and replacing with NON CC engine, it can be seen in pictures under the restoration section.
No cruse control in car, Keeping the AC
1st I understand about the transmission lock up, I have this covered.
2nd If I understand this correctly I can just remove the section of wiring harness that goes from the computer to the engine control portion.
If I do this will my AC and defrost still function, as well as all the gages?
If anyone has pictures or any further information please advise.
Keithss

#1016563 - 11/30/14 04:15 PM Re: STICKY: Removing the Monte Carlo SS computer [Re: Keithss]  
Joined: Oct 2003
Posts: 1,479
87ChooChoo Offline
10+ Year
87ChooChoo  Offline
10+ Year
Member

Joined: Oct 2003
Posts: 1,479
las Vegas, NV
Originally Posted By: Keithss

2nd If I understand this correctly I can just remove the section of wiring harness that goes from the computer to the engine control portion.
If I do this will my AC and defrost still function, as well as all the gages?
If anyone has pictures or any further information please advise.
Keithss


There are actually two harnesses that come through on the passenger side- 1 engine and 1 HVAC. You need to drop your passenger side inner fender well, and you will see how they pass through. Don't just cut the harness off ( it has value to someone returning to ECM control, or you may even want to go back later). Unplug it from the ECM, and pass it through the firewall. IIRC, there is 1 or two sheet metal screws that hold the harness to the firewall, and you may need to make a small sheetmetal plate to cover the hole.

No impact on gauges by removing the ECM, except you may have the check engine light on all the time. Either remove the bulb, or go above the glove box and you will find a small plastic box taped to the harness. Inside this box is a PCB ( The Light Control Module that drives the Check Engine Light). Pull the PCB out of this box, turn it around, and slide it back inthe box. Tape the cover closed. Now, again, if you ever want to go back, all you have to do is plug in the PCB.


85 El Camino Choo Choo with L31 350 Crate, TPI, Serp, TES Headers, GN 200-4r, 3.73 8.5 GN Posi, Acura Buckets, '04 GP Console, Electric Mirrors, Electronic HVAC, ZQ8 wheels, Blazer front brakes, LS1 rear brakes, and more....
https://sites.google.com/site/darbyselky/home
#1016574 - 11/30/14 10:03 PM Re: STICKY: Removing the Monte Carlo SS computer [Re: lazygearhead]  
Joined: Aug 2014
Posts: 236
Keithss Offline
Member
Keithss  Offline
Member

Joined: Aug 2014
Posts: 236
Jackson,mi
87ChooChoo
Thank You for the response. I already have the inner finders removed, as you can see in some of the pictures I have posted in the restoration section. I was not going to cut the wires, as I had already planed on removing the harness. For some reason I was thinking that I read someplace that I would lose the AC and Defrost if I disconnected the engine portion of the wiring.
The box in your picture must be the PCB that you mention.
Again Thanks
Keith

#1022984 - 04/18/15 08:49 PM Re: Removing the Monte Carlo SS computer [Re: lazygearhead]  
Joined: Aug 2012
Posts: 203
Cheford Offline
Member
Cheford  Offline
Member

Joined: Aug 2012
Posts: 203
Ottawa, Ontario
so this kit basically just tells the TC when to lock up? at a 50 roll it will signal the transmission to downshift or I have to manually signal it?


[Linked Image]
#1026959 - 07/13/15 12:38 PM Re: Removing the Monte Carlo SS computer [Re: lazygearhead]  
Joined: Apr 2015
Posts: 3
Jan Offline
New Member
Jan  Offline
New Member

Joined: Apr 2015
Posts: 3
Stuttgart, Germany
Hi,
I bought a 83 SS. Computer was allready removed, vakuum advanced distributor was installed and lock up should be no issue as it is the TH350 trans. But there is still the Quadrajet on it, and it doesnīt run so bad (but I didnīt test a lot or measure CO2). So the MCS doesnīt get any signal from the computer anymore. Is it possible to leave it like it is or do I have to do something with the MCS (signal to GND or 12V or something like this) or do I have to replace the quadrajet with some edelbrock stuff for sure?
second thing is off-topic: are there known problems with the heating system? for some reason they removed the water lines to the radiator (I mean heating, not engine cooling) and back, but I donīt know why....
thanks and regards
Jan

Last edited by Jan; 07/13/15 12:41 PM.
#1032636 - 12/01/15 09:42 PM Re: Removing the Monte Carlo SS computer [Re: lazygearhead]  
Joined: Mar 2000
Posts: 5,489
upflying Offline
15+ Year
upflying  Offline
15+ Year
Member

Joined: Mar 2000
Posts: 5,489
Reno, NV
Removing the heater hoses usually means the heater core was leaking. A common problem and easy to repair. The heater hoses connect to the engine and water pump, not the radiator.
I am not sure if the electronic quadrajet will operate normally without the computer.
My guess is the Mixture Control Solenoid will go into a default rich mode to protect the engine from lean damage such as overheating.
You will probably have poor fuel consumption.
I would change to a regular carb.


86 MCSS Notchback coupe, LS3, 4L65E, QP 9", Eaton Truetrac, 4 wheel disc, column shift, Dakota Digital, silver with maroon bench interior

[Linked Image]
#1037435 - 04/08/16 12:20 PM Re: Removing the Monte Carlo SS computer [Re: lazygearhead]  
Joined: Apr 2016
Posts: 6
theunderdawg Offline
New Member
theunderdawg  Offline
New Member

Joined: Apr 2016
Posts: 6
Danville va
hey just to make sure .. i only need the tv cable bracket etc.. and the lockup kit .i have a 87 ss 305 with 2004r tranny with a 1406 edelbrock carb? i already have hoooker headers

Last edited by theunderdawg; 04/08/16 12:21 PM.
#1043475 - 09/13/16 11:06 AM Re: Removing the Monte Carlo SS computer [Re: lazygearhead]  
Joined: Apr 2016
Posts: 6
theunderdawg Offline
New Member
theunderdawg  Offline
New Member

Joined: Apr 2016
Posts: 6
Danville va
Ok got the new hei dizzy installed timing set etc... "now when i trace the wires from the computer" i got only one harness left to unplug which is plugged in on the bottom driver side of the tranny would that affect anything if i unplugged that also

Page 6 of 7 1 2 3 4 5 6 7

Random Images
500/thumbs/DSC020442.JPG
by javi05
681/thumbs/T5_in_place.jpg
by TPI Monte SS
809/thumbs/montejim.jpg
by jenifuriouSS
500/thumbs/2313650_2_full.jpg
by T-Top Tony
500/thumbs/ECM_Board1.jpg
by Rayy87ss
Help MonteCarloSS.com


Recent Contributors
OneOwner85
Authorized Vendors
Tell them you saw it
on MonteCarloSS.com!


CustomMonteSSParts.com
Dixie Monte Carlo Depot
GSI Interiors
HRpartsNstuff
Mikes Montes
Savitske Classic & Custom
Powered by UBB.threads™ PHP Forum Software 7.6.0