article 35 in tech know-how - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 06-10-2003, 01:58 AM   #11
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I have a friend with a similar situation and his seemed to work only at certain temps and then stop quite quickly. He had the main system totally redone and the final price was lol 800.00. Still no result after redoing the entire underhood system that was leaking.
Soooooooo I will be helping my friend (for beer not money..lol ) with his under dash portion of the system and would love to find out how it turns out for ya. I will let you know how it goes on our end but I believe his is a sensor or some other component. I am going to replace major parts all the way down the system until I find the problem. Weeee

Ty
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Old 06-10-2003, 03:19 PM   #12
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i think its just the evap core needs to be cleaned too now, but I dont know where it is?
would anyone here be willing to walk me step-by-step through this, i dont know where to start at...
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Old 06-10-2003, 05:57 PM   #13
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Quote:
Originally Posted by White Lightning
i think its just the evap core needs to be cleaned too now, but I dont know where it is?
would anyone here be willing to walk me step-by-step through this, i dont know where to start at...
Start at the TechInfo link at the top of this page, click on the Tech Know-How link, and look at Item 35 on the list...
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Old 06-12-2003, 06:54 PM   #14
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I read the first step, but where is that at?
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Old 06-12-2003, 07:06 PM   #15
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Quote:
Originally Posted by White Lightning
I read the first step, but where is that at?
You mean this?

Quote:
Step 1
Remove the Engine Compartment'* Relay Cover. Now remove the hold down bolts that hold the Relay Rail to the Firewall. Next, adjust the Relay Rail out of your way so you can access the Blower Resistor that is situated on the top of the Heater Box. Remove the three 7mm bolts, then pull out the Resistor Relay & disconnect the connector.
It'* referring to the big black plastic cover on the firewall, passenger'* side, reading "MAXIFUSE RELAY CENTER" across the front. Unscrew a couple of stamped wing nuts on the top and it should come right off. (You _are_ under the hood, right? It'* on the engine side of the firewall, not under the dash.)
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Old 06-12-2003, 10:32 PM   #16
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Default Re: article 35 in tech know-how

Quote:
Originally Posted by White Lightning
ok when i turn up the fans on my climate control, there is more noise like the fan is on high, but there just isn't any pressure. my auto-shop teacher said this was because bonnevilles have a chip or something that goes out and cost $800 to replace, but i am kind of wondering if article 35 in the tech infor tech know-how might be whats wrong too? does anybody know?
Your auto shop isnt full of ****, he is just confused. What he is most likely thinking of is the older, origional GM Electronic Climate Controls from the early 80'*. There was a electronic circut board that was mounted in the air stream for the HVAC system under the hood. If this module went bad it would default to HI fan speed and DEF mode. If this board went bad it was HELLA expensive to get it replaced. My dad had a 81 Cadillac that it went bad on, he got it at the junk yard for $100, Dealer wanted $500. It went on his 83 Riv too, and on our old 82 Buick Electra wagon. So, he just was trying to help out. Old people get confused.

Jay
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Old 06-18-2003, 11:25 PM   #17
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Quote:
Originally Posted by acg_ssei
Quote:
Originally Posted by White Lightning
I read the first step, but where is that at?
You mean this?

Quote:
Step 1
Remove the Engine Compartment'* Relay Cover. Now remove the hold down bolts that hold the Relay Rail to the Firewall. Next, adjust the Relay Rail out of your way so you can access the Blower Resistor that is situated on the top of the Heater Box. Remove the three 7mm bolts, then pull out the Resistor Relay & disconnect the connector.
It'* referring to the big black plastic cover on the firewall, passenger'* side, reading "MAXIFUSE RELAY CENTER" across the front. Unscrew a couple of stamped wing nuts on the top and it should come right off. (You _are_ under the hood, right? It'* on the engine side of the firewall, not under the dash.)
yeah thats what I meant, now uI understand,but then.... what is the relay rail?
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Old 06-19-2003, 06:07 PM   #18
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Quote:
Originally Posted by White Lightning
yeah thats what I meant, now uI understand,but then.... what is the relay rail?
That would be the assembly holding the bank of relays that you'll uncover when you remove the big black plastic MAXIFUSE shield.

I would suggest taking the printout of the procedure out with you to the car and reading through the steps as you go. I think you should figure it out as you work through it. If not, maybe there'* a mechanic you could show that procedure to who could identify the relevant parts for you...?
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