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Topic: engine compartment firewall questions (Read 1384 times) previous topic - next topic

engine compartment firewall questions

on the A/C side, what is the oval and the round hole for?

on the driver side the two holes left of throttle cable and large whole right side of throttle cable?

XX

engine compartment firewall questions

Reply #1 –
Right of the throttle is for the clutch cable. The two to the left are for the windshield washer hose and a wiring harness.

Left side is for heater hoses I think and more wiring.

If I get time tomorrow, I'll check my 84 to verify. In the meantime someone who is sure may post.
84 COUGAR/90 HO, 1.7RRs, performer RPM,700DP, equal length shorties, stainless EXH ,T-5,Hurst pro-billet, KC clutch, 8.8/ 4.10s, line-lok, bla ,bla, bla.
71 COMET/289,351w heads, 12.5 TRWs, 750DP, Liberty TL, 9"/6.00s, 11.9x @112 , bla,bla,bla.

Never shoot your mouth off, unless your brain is loaded! ....I may get older, but I'll never grow up!....If you're not laughing, you're not living!  :laughing:

engine compartment firewall questions

Reply #2 –
ok thanks, I just wondering what wiring harness that is on the left of A/C?

engine compartment firewall questions

Reply #3 –
I THINK it's for the pressure sw on the A/C accumulator as well as some vacuum lines needed for the heater controls.
84 COUGAR/90 HO, 1.7RRs, performer RPM,700DP, equal length shorties, stainless EXH ,T-5,Hurst pro-billet, KC clutch, 8.8/ 4.10s, line-lok, bla ,bla, bla.
71 COMET/289,351w heads, 12.5 TRWs, 750DP, Liberty TL, 9"/6.00s, 11.9x @112 , bla,bla,bla.

Never shoot your mouth off, unless your brain is loaded! ....I may get older, but I'll never grow up!....If you're not laughing, you're not living!  :laughing:

engine compartment firewall questions

Reply #4 –
On my 86', the big hole to left of the A/C was foe the engine wiring.


86' T/C 4.6L DOHC
16' Chebby Cruze 1.4L Turbo
17’ Peterbilt 389 600hp 1850ftlb Trq 18spd

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“Heavy Metal Mistress”
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engine compartment firewall questions

Reply #5 –
Like for the ecu for thunderbird v8?  in the first picture I have a harness with lights and start selnoid, and things on it coming from the right of steering shaft.

engine compartment firewall questions

Reply #6 –
This is what they were for on my TC.


88 Turbocoupe: Coast High Performance 331 kit 28oz balance, Comp XE264HR14 cam, 58cc 185 afr heads, 1.7 roller rockers, Mass-Flo EFI (was POS to setup and their techline is a joke at best)
Full 1 5/8 primary equal length headers, 2 1/2 exhaust, Full manual reverse VB c4 and baked off clear coat "BECAUSE RACECAR"

engine compartment firewall questions

Reply #7 –
thanks, little confused on the body/brake harness, everything else I got.

engine compartment firewall questions

Reply #8 –
I don't have a pic of mine or I'd post it. But there is an oblong grommet that goes through there on my 88 tc and the eec harness and eletronic brakes go through there. On your car not sure what would be there.
88 Turbocoupe: Coast High Performance 331 kit 28oz balance, Comp XE264HR14 cam, 58cc 185 afr heads, 1.7 roller rockers, Mass-Flo EFI (was POS to setup and their techline is a joke at best)
Full 1 5/8 primary equal length headers, 2 1/2 exhaust, Full manual reverse VB c4 and baked off clear coat "BECAUSE RACECAR"

engine compartment firewall questions

Reply #9 –
The little hole above and to the left of the brake booster is for the clutch cable, or hydraulic cylinder for the '87/8 TC's. On 5.0 and 3.8 cars, it's got a rubber grommet in it.
'98 Explorer 5.0
'20 Malibu (I know, Chevy, but, 35MPG. Let's go brandon, eh)