Hoses going to Throttle body on an '86...
#1
Burning Brakes
Thread Starter
Hoses going to Throttle body on an '86...
I'm doing some routine maintenance on an '86, and would like to replace all the hoses going to the throttle boy. The car is mostly stock, and being kept that way. I order my parts online, so won't be just bringing them into a parts shop. Was wondering if anyone might have the parts numbers and or names for these hoses so I can find replacements. Thank you.
#2
Not sure on that year but would look into a throttle body bypass.
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racerseks (12-09-2016)
#3
Safety Car
RockAuto has a hose kit that includes all the underhood hoses for the 86. You can get that U shaped hose that comes out of the front of the TPI at Autozone (87653). I'm sure they will likely have the other ones too.
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racerseks (12-09-2016)
#4
basically, there are two coolant hoses on the throttle body. one hose comes off the heater core plumbing, and can be replaced with standard heater hose from any local parts supplier. my suggestion, add an in-line (prestone) flushing tee to aid in future maintenance. there is also a "U" shaped hose from the front of the intake manifold to the throttle body. the original GM part has been discontinued, but available as a replacement item. most are not "plug and play," and one leg will have to be trimmed to fit. the last one I bought was a Gates 18777 Molded Heater Hose - available just about anywhere for $5-6.
as for the by-pass, i'd say no if you want to keep it stock. i'm thinking studies have found that it does little to increase performance anyway. the other hose is part of the PCV system and can be replaced with any off the shelf PVC hose for emissions systems. i'm thinking the original OEM part number is ( GM) #9438382. on my 85, I replaced it with a piece of 1/2" pcv hose from NAPA -
as for the by-pass, i'd say no if you want to keep it stock. i'm thinking studies have found that it does little to increase performance anyway. the other hose is part of the PCV system and can be replaced with any off the shelf PVC hose for emissions systems. i'm thinking the original OEM part number is ( GM) #9438382. on my 85, I replaced it with a piece of 1/2" pcv hose from NAPA -
Last edited by Joe C; 12-08-2016 at 08:59 AM.
#5
Burning Brakes
Thread Starter
#6
Burning Brakes
Thread Starter
#7
Burning Brakes
Thread Starter
basically, there are two coolant hoses on the throttle body. one hose comes off the heater core plumbing, and can be replaced with standard heater hose from any local parts supplier. my suggestion, add an in-line (prestone) flushing tee to aid in future maintenance. there is also a "U" shaped hose from the front of the intake manifold to the throttle body. the original GM part has been discontinued, but available as a replacement item. most are not "plug and play," and one leg will have to be trimmed to fit. the last one I bought was a Gates 18777 Molded Heater Hose - available just about anywhere for $5-6.
as for the by-pass, i'd say no if you want to keep it stock. i'm thinking studies have found that it does little to increase performance anyway. the other hose is part of the PCV system and can be replaced with any off the shelf PVC hose for emissions systems. i'm thinking the original OEM part number is ( GM) #9438382. on my 85, I replaced it with a piece of 1/2" pcv hose from NAPA -
as for the by-pass, i'd say no if you want to keep it stock. i'm thinking studies have found that it does little to increase performance anyway. the other hose is part of the PCV system and can be replaced with any off the shelf PVC hose for emissions systems. i'm thinking the original OEM part number is ( GM) #9438382. on my 85, I replaced it with a piece of 1/2" pcv hose from NAPA -
Great info! Thanks so much! I bought one of those flushing tees years ago...thanks for reminding me! Great time to put it in, as I'm doing some cooling system maintenance too. What's the best location for that tee? Thanks again!
#8
Burning Brakes
Thread Starter
Thanks...I did look at that kit, but already have most the other hoses in it. Are they blue? Thanks for your thoughts.
#9
Last edited by Joe C; 12-09-2016 at 08:24 PM.
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racerseks (12-10-2016)
#10
Burning Brakes
Thread Starter
Thanks again!
#11
Safety Car
I know there's a red kit and a blue one. I think I've seen a black set too. I know blue doesn't match but if you're needing a hose, blue is better than nothing though I wouldn't mind finding a red set some day.
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racerseks (12-10-2016)
#12
Burning Brakes
Thread Starter
Yea, those might be kind of cool for the right application. Doubt they come in rusty red metallic, ha-ha. Thanks again!
#13
Burning Brakes
Thread Starter
By the way...looks great! Looks like a pic from out of an '85'early '86 brochure!
#14
correct - that's one of the coolant hoses from the throttle body that you'll be replacing. standard heater does the job..
Last edited by Joe C; 12-10-2016 at 02:11 AM.
#15
Burning Brakes
Thread Starter
Cool. Been wanting to put that in for a while now. Makes the job easier on my other ride. Just never could decide where, but that looks good where you have it. Thanks for mentioning it!