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Forum: Engine Swap
11-16-2020, 07:58 PM
Replies: 9
Views: 611
Posted By CorvairGeek

Re: Air Cleaner for an Unknown 4.3 Engine in 89 Camaro

That looks to be the '85-'86 4.3L full size pickup ONLY with 4bbl carburetor. I see what looks like the stainless headers too. Origionally ESC distributor. What a mess...
Forum: Electronics
03-30-2019, 08:45 PM
Replies: 5
Views: 445
Posted By CorvairGeek

Re: Where does the high speed fan relay mount with a non-AC HVAC box?

I've not seen a high fan relay in non-AC applications in this era. The non-AC fan is a lower amperage fan motor.
Forum: DFI and ECM
10-09-2018, 09:29 PM
Replies: 17
Views: 1,809
Posted By CorvairGeek

Re: 1985 Camaro ECM fire!!!

I spy a '79 Chevette.
Forum: Cooling
05-27-2018, 10:41 PM
Replies: 11
Views: 807
Posted By CorvairGeek

Re: A/C system 100% new and not working right

I'm out of ideas then. I did not realize any N.A. designed GM product had a capacity that small in that era.
Forum: Cooling
05-27-2018, 10:06 PM
Replies: 11
Views: 807
Posted By CorvairGeek

Re: A/C system 100% new and not working right

You should have good cooling with those pressures, IF the capacity is correct. I recall the original capacity in this era being around 3.25lbs.

The pressure drop with water is to be expected,...
Forum: Exhaust
02-08-2018, 09:01 PM
Replies: 15
Views: 1,303
Posted By CorvairGeek

Re: Cat with constant AIR injection?

Correct, it would be hotter in general, but rich with air injection would create an over heat condition.
Forum: Exhaust
02-05-2018, 08:42 PM
Replies: 15
Views: 1,303
Posted By CorvairGeek

Re: Cat with constant AIR injection?

AIR is diverted under some normal operating conditions, and specifically under emission failure conditions. A rich condition with air injection to the converter can create excessive underfloor...
Forum: History / Originality
01-27-2018, 09:08 PM
Replies: 55
Views: 5,022
Posted By CorvairGeek

Re: 5k mi time capsule 83 - check out the lack of opts

I'm 99% sure the logo at bottom of the radio is Audiovox. They looked very similar to the Delco units, but sounded terrible, IMHO
Forum: History / Originality
01-25-2018, 08:55 PM
Replies: 55
Views: 5,022
Posted By CorvairGeek

Re: 5k mi time capsule 83 - check out the lack of opts

Even a dealer installed, Audiovox radio.
Forum: Car Audio
12-11-2017, 09:46 AM
Replies: 7
Views: 775
Posted By CorvairGeek

Re: factory radio security override

That's a nice radio! I'm glad someone pointed it out, as I forget that there are a few good for swaps into older vehicles.
Do you know if it suffers the burn out of the LCD backlite bulbs like the...
Forum: Car Audio
12-10-2017, 06:24 PM
Replies: 7
Views: 775
Posted By CorvairGeek

Re: factory radio security override

Most by 2000 are serial bus (must see mating VIN on the bus) and are a whole other can of worms, besides being double DIN. Others will be fine as long as some did not set the code. Those can be...
Forum: Interior
12-03-2017, 02:44 PM
Replies: 1
Views: 646
Posted By CorvairGeek

Re: dash swaps

That cluster communicates over the GM LAN bus, not discrete inputs. You have a nearly impossible task on your hands.
Forum: Car Audio
12-02-2017, 09:23 PM
Replies: 7
Views: 1,800
Posted By CorvairGeek

Re: 2004 Montana radio in '85 T/A ?

I really appreciate that.

A smart fellow over on Firebird Nation had done a really nice, earlier serial bus radio transplant into his F body, but I couldn't find anything regarding the late...
Forum: Car Audio
12-02-2017, 03:05 PM
Replies: 7
Views: 1,800
Posted By CorvairGeek

Re: 2004 Montana radio in '85 T/A ?

It is a shame, as the first generation GM double din radios are pretty cool, and Pontiac used some (Bonneville, Gran Prix, Grand Am, Montana) that do look look period correct for older vehicles...
Forum: Car Audio
12-01-2017, 09:15 PM
Replies: 7
Views: 1,800
Posted By CorvairGeek

Re: 2004 Montana radio in '85 T/A ?

2004 are class 2 serial bus radios. It can be done (as in my avatar), but it will need the matched DIM (Dash Interface Module, usually the power mode master by design) to power it on (serial bus...
Forum: Aftermarket Product Review
11-23-2017, 01:41 PM
Replies: 12
Views: 8,664
Posted By CorvairGeek

Re: Fair warning about AC Delco Ignition Control Module D1943A

That's even the best quality version too!
I don't trust AC Delco like I used to.
Any sign of overheating on the metal bottom of the module or dielectric grease?
Forum: Cooling
11-17-2017, 06:47 PM
Replies: 25
Views: 2,547
Posted By CorvairGeek

Re: AC not working, where is most likely source of leak?

Most likely source is the front seal of the R4 compressor. Dealing with the R4 is rough for a DIY, as GM/Delphi hasn't made them for years and the replacements (even if they say AC Delco) don't have...
Forum: TPI
11-05-2017, 02:41 PM
Replies: 22
Views: 4,349
Posted By CorvairGeek

Re: 1989+ TPI: Have you had to replace your injectors, and why?

The first generation Multitecs had a questionable reputation across GM car lines. The resistance typically drops as they fail, and sometimes intermittently short out and kill the engine (as...
Forum: Exhaust
11-05-2017, 08:25 AM
Replies: 11
Views: 722
Posted By CorvairGeek

Re: What is this pipe next to/in my exhaust on my stock 89' Camaro exhaust?

No on belt driven pump GM ODB 1. The A.I.R system by design only injects air to the exhaust manifolds when the system is open loop. There is no ECM monitoring, i.e. current monitoring of the...
Forum: Car Audio
11-04-2017, 12:14 PM
Replies: 7
Views: 2,239
Posted By CorvairGeek

Re: Speaker resistance

Learn something new everyday. I 'think' my A-bodies may still have 10 ohm speakers with the late ETR units. I did not realize GM started the mixed ohm speakers with the early ETR head units. I...
Forum: Cooling
11-04-2017, 11:44 AM
Replies: 4
Views: 511
Posted By CorvairGeek

Re: no heat

Still looking for how to introduce myself on this forum. Not an F-body guy, but saw useful info from some great people!

The valves by default allow coolant flow, i.e. heat, without vacuum. GM...
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