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02-19-2002, 02:55 PM
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#1 |
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Registered User
Join Date: Feb 2001
Location: Chesnee,SC 29323
Posts: 47
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Where's the computer in a 85 Silverado?
I ordered a new computer for my truck and the one that came in was the one you exchange the chip in. Mine is a carburator with a 305 with a 350 turbo. I heard it is everywhere from behind the radio to behind the pass. kick panel. The only thing I found that looks like a computer was behind the glove box.I even took my instrument panel out looking for it. Just wondering if that was it. If so I can't seem to find a new one. Seems no one around my area knows exactly where it is or what it was I pulled out. Thanks for any help! Sometimes I lose fire and I have a new dist., cap, coil, etc. Was told the computer might be my problem? Just trying to find one.
------------------ 1970 C/10 sb fleetside 1968 GMC sb fleetside 1964 Impala SS 1969 Camaro 1985 Silverado (daily driver)
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1970 C/10 sb fleetside 1968 GMC sb fleetside 1964 Impala SS 1969 Camaro 1985 Silverado (daily driver) |
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02-20-2002, 01:00 AM
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#2 |
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My other Love
Join Date: Aug 2001
Location: Castlegar B.C. Canada
Posts: 4,085
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I dont think there is a computer in a 85 if you say you have a carb. I think computer were only on the tbi vehicles in 87. But if there was one it would be behind your glovebox
------------------ 69 custom camper/cst 10 70 monte carlo 73 chevelle 4 door deluxe"kermit": no carpet(rubber floor) no floor, no trunk still drives 74 cheyenne super 20 454 77 fully loaded silverado that my Grandpa gave me 1980 BMW 320i(at least it isnt Japanese) 1972 Honda ct 90 trailbike Castlegar B.C. (Canada Aye!)
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 Castlegar B.C.The great white North (Canada Eh!) Hooter_5@hotmail.com First generation Monte Carlo club pictures of my life |
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02-20-2002, 05:29 PM
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#3 |
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Registered User
Join Date: Mar 2000
Location: Clute, TX.
Posts: 1,935
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it is behind the glove compartment in a such, only it aint really a computer. it is the (ESC) eletronic spark control. in short that spells JUNK. remove it, get a distributor from a 79 or older, or an after market with out the spark control and remove the WHOLE control unit.
------------------ 85 C10 350/700r4 COMPCAMS XE262 "K" kit compcams magnum roller rocks (SOON I HOPE) 91'BURB GRILL CONVERTION HOLLEY STREET DOMINATOR INTAKE EDELBROCK 1406 COMP. SERIES CARB. HYPERTECH POWER COIL FACTORY HEADERS MAGNAFLOW CAT/MUFFLER/3in. EXHAUST 3.42 REAR GEARS PROTHANE SUSPENSION-TOTAL KIT DUAL 13" ELECTRIC FANS and still going "thats my toy" Jeff Dodson Angleton,Tx.
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2004 Silverado Crewcab 1972 Chevy Monte Carlo 2017 Chevy Tahoe |
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02-20-2002, 09:53 PM
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#4 |
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BAD BOW-Silverado XST
Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
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You can by-pass the ECS computer by cutting two wires and connecting them together. I can't remember which one rights now. I know Mike has that information on his web site. The wires you cut are two of four that plug into the HEI.
------------------ Gerardo 1983 Custom Truck TX Plates: "BAD BOW" http://www.geocities.com/abetterchemist/ |
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02-21-2002, 07:42 AM
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#5 |
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BAD BOW-Silverado XST
Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
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Found it!!! Get rid of the ECS computer!!
http://personal.clt.bellsouth.net/cl...ge/escrepl.htm ------------------ Gerardo 1983 Custom Truck TX Plates: "BAD BOW" http://www.geocities.com/abetterchemist/ |
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02-24-2002, 08:40 AM
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#6 |
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laying low
 
Join Date: Mar 2001
Location: Searcy, Ark. USA
Posts: 13,513
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Been through the same thing myself. What I found was the wires coming out of the side of the distributor had a break in them right there at the grommet. With it running, lift the wires up and down and it would shut off. Don't know if this is what caused my ESC box to go bad but I did have to replace it also. I ran this truck for several years with the wires bypassing the control box as they suggest. While it did run, there were problems I couldn't cure such as sluggish performance, pinging, and run on after turning the key off even with using the premium grade gas. I could pretty much stop the pinging by retarding the timing but that hurt the power and performance. I finally gave up and replaced the spark box, put the timing back to stock setting, run regular gas, have no pinging and the power and performance is back. So, to say the least, I'm much happier with the factory setup on mine. Also, mine is a completely stock '85 K5 Blazer with 305 engine. Boog.
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Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross |
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02-24-2002, 04:25 PM
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#7 |
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Registered User
Join Date: Feb 2001
Location: Chesnee,SC 29323
Posts: 47
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Thanks for all the suggestions. I replaced the ESC behind the glovebox with one from the junkyard and the truck is doing fine. Got an appointment at the muffler shop in the morning to replace the blowed out one from all this happening. Thanks again!
Bryan ------------------ 1970 C/10 sb fleetside 1968 GMC sb fleetside 1964 Impala SS 1969 Camaro 1985 Silverado (daily driver)
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1970 C/10 sb fleetside 1968 GMC sb fleetside 1964 Impala SS 1969 Camaro 1985 Silverado (daily driver) |
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