Post good digital pic of 1983 engine bay, V6 or V8 is fine
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From: Charles County, Maryland
Car: 2000 BMW M5
Post good digital pic of 1983 engine bay, V6 or V8 is fine
Hi guys, I have a 1983 Firebird that was a 2.8 carbed V6 that is now a 5.0 V8, that I have retrofit with all correct emissions equipment for 1983 including the CCCQjet, AIR, vapor recovery, pulsewidth modulated EGR, thermac, etc. All vac. routing went great except for a line that looks to have been missing from the V6 car for some time. There is a black container about 6" wide mounted directly behind the brake booster, above it, on the firewall. It is rectangular and plastic and the front has a rounded shape to it. It has 2 vacuum ports on the end facing the pass. side of the car. One has a vac line that looks like it loops all the way around the drivers fender and to the charcoal can ,or near it. The other port is not connected to anything. The vac module on the end of the windshield wiper motor also has a vac port that is missing a hose. Do these 2 directly connect and the hose just fell off, or do they take separate lines and they both go somewhere different? If so where do they go? A pic isn't necessary if you can answer my question but it always helps.
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The black thing about 6" long is the vacuum accumulator (!) for the HVAC and cruise.
Sounds like somebody has largely randomized your hoses.
The larger of the 2 ports on the accumulator hooks to intake vacuum, the fitting on the top of the intake behind the carb. The smaller one gets the plastic line that's part of the HVAC wiring harness.
There are no vacuum ports on the wiper motor; only washer fluid. The largest of the 3 goes to the washer fluid bottle. The 2 smaller ones go to the 2 squirters.
If the car had cruise, then there may be a line for that still hanging out somewhere. That would also have been a line going to the fitting behind the carb, and that line would run along the bottom of the windshield cowl to the brake booster area, then toward the front on top of the strut tower, then plug into the cruise regulator, which was mounted on the front of the strut tower right behind the charcoal canister. Sounds like that's what that other line is.
If the cruise is gone, eliminate that line; and plug the extra nipple behind the carb.
Sounds like somebody has largely randomized your hoses.
The larger of the 2 ports on the accumulator hooks to intake vacuum, the fitting on the top of the intake behind the carb. The smaller one gets the plastic line that's part of the HVAC wiring harness.
There are no vacuum ports on the wiper motor; only washer fluid. The largest of the 3 goes to the washer fluid bottle. The 2 smaller ones go to the 2 squirters.
If the car had cruise, then there may be a line for that still hanging out somewhere. That would also have been a line going to the fitting behind the carb, and that line would run along the bottom of the windshield cowl to the brake booster area, then toward the front on top of the strut tower, then plug into the cruise regulator, which was mounted on the front of the strut tower right behind the charcoal canister. Sounds like that's what that other line is.
If the cruise is gone, eliminate that line; and plug the extra nipple behind the carb.
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RedLeader289
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May 28, 2019 01:47 PM
