Need Help With An 88 K2500 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

roughedup72 · 03-07-2006, 09:45 PM

Hi all,
My brother just bought a 1988 k2500 that the engine and transmission was in boxes so to speek. Anyway everything has been put back together and back in place but when we were hooking up the distributor we found a plug that had been hooked up to something but we dont know what. I dont have pics. of it but I can tell you that it comes out of the big wiring harness that goes behind the engine and is the one that the dizzy gets it's power from. The connector is oval shaped,its color is orange,it has two wires going to it, a pink w/black stripe and an orange wire. They are offset in the connector. I looked in the haynes manual but there is nothing there about it. Can somebody tell me what it connects to or any info that might be of some help would be greatly appreciated.

roughedup72 · 03-08-2006, 10:32 AM

Anybody???

STEVE A WILBURN · 03-08-2006, 02:53 PM

I Have All The Books On My 1988 K 1500. Ill Look Tonite And See If I Can See Anything. Yours Been A 2500 I Dont Know If It Will Show What You Are Look For. Ill Post After I Get To Work, My Pc Is Down At Home. Greatoldguy Steve

roughedup72 · 03-08-2006, 03:09 PM

Thanks Steve. My brother came over today and we were looking for an exhaust leak and found the pass. side O2 sensor was missing so we think that this may be where it goes to but were not sure, So your help would be appreciated. Thanks agian.

rockman20 · 03-09-2006, 12:02 PM

Pictures would help with this one. It could be almost anything. Does the truck have A/C? Could it be for the plug on the condensor? It could be O2, but usually they are one wire. Unless it is a heated sensor.

Like I said, a pic would be helpful.

roughedup72 · 03-09-2006, 05:55 PM

I talked to my buddy at work who has a 89 4x4, he just did an engine swap also and he said it may be the oil preasure sending unit that's on the intake manifold next to the dizzy. My brothers was broken off so hee just plugged the hole with a fitting. From the way my buddy described the fitting on his it sounds just like what we're looking for. Thanks again.

STEVE A WILBURN · 03-10-2006, 06:41 AM

I Looked Over My Books And Didnt See A Connector With The 3 Wires With Pink W/black Stripe And Orange Wire. I Did See A Pink One That Said It Went To A Fusible Link. Steve

roughedup72 · 03-10-2006, 11:21 PM

I may have been unclear on that connector, Let try to explain it again. It only has 2 wires, 1-orange and 1-pink with black stripe. See if there is a oil preasure sensor or switch on the top of the engine. Its on the drivers side one the back side of the intake.Thats all the info I have and the haynes manual dont show anything. Thanks again.

roughedup72 · 03-24-2006, 03:55 PM

Its an oil preasure switch, these trucks have a oil preasure switch and a oil preasure sensor. Thanks for the help guys.

03-07-2006, 09:45 PM	#1
roughedup72 Senior Member Join Date: Oct 2005 Location: south carolina Posts: 658	Need Help With An 88 K2500 Hi all, My brother just bought a 1988 k2500 that the engine and transmission was in boxes so to speek. Anyway everything has been put back together and back in place but when we were hooking up the distributor we found a plug that had been hooked up to something but we dont know what. I dont have pics. of it but I can tell you that it comes out of the big wiring harness that goes behind the engine and is the one that the dizzy gets it's power from. The connector is oval shaped,its color is orange,it has two wires going to it, a pink w/black stripe and an orange wire. They are offset in the connector. I looked in the haynes manual but there is nothing there about it. Can somebody tell me what it connects to or any info that might be of some help would be greatly appreciated. __________________ 1972 chevy cheyenne 10,nothing special at the moment,Its a work in progress, Working on the engine, paint and body,engine, paint and body,now its the suspenion, ahh hell I'm about tired of working on it. Maybe it will be a rat rod.

03-08-2006, 10:32 AM	#2
roughedup72 Senior Member Join Date: Oct 2005 Location: south carolina Posts: 658	Re: Need Help With An 88 K2500 Anybody??? __________________ 1972 chevy cheyenne 10,nothing special at the moment,Its a work in progress, Working on the engine, paint and body,engine, paint and body,now its the suspenion, ahh hell I'm about tired of working on it. Maybe it will be a rat rod.

03-08-2006, 02:53 PM	#3
STEVE A WILBURN Registered User Join Date: Feb 2004 Location: TONEY ALA Posts: 307	Re: Need Help With An 88 K2500 I Have All The Books On My 1988 K 1500. Ill Look Tonite And See If I Can See Anything. Yours Been A 2500 I Dont Know If It Will Show What You Are Look For. Ill Post After I Get To Work, My Pc Is Down At Home. Greatoldguy Steve __________________ JUST HAPPY TO BE ALIVE.

03-08-2006, 03:09 PM	#4
roughedup72 Senior Member Join Date: Oct 2005 Location: south carolina Posts: 658	Re: Need Help With An 88 K2500 Thanks Steve. My brother came over today and we were looking for an exhaust leak and found the pass. side O2 sensor was missing so we think that this may be where it goes to but were not sure, So your help would be appreciated. Thanks agian. __________________ 1972 chevy cheyenne 10,nothing special at the moment,Its a work in progress, Working on the engine, paint and body,engine, paint and body,now its the suspenion, ahh hell I'm about tired of working on it. Maybe it will be a rat rod.

03-09-2006, 12:02 PM	#5
rockman20 "The dude abides" Join Date: Apr 2003 Location: North Dakota Posts: 472	Re: Need Help With An 88 K2500 Pictures would help with this one. It could be almost anything. Does the truck have A/C? Could it be for the plug on the condensor? It could be O2, but usually they are one wire. Unless it is a heated sensor. Like I said, a pic would be helpful. __________________ RockMan 1993 Chevy Silverado C3500 1 ton dually 1994 Honda Civic 1969 Oldsmobile Cutlass S 1953 IH Farmall Super M New to the fleet: 1992 Subaru Loyal

03-09-2006, 05:55 PM	#6
roughedup72 Senior Member Join Date: Oct 2005 Location: south carolina Posts: 658	Re: Need Help With An 88 K2500 I talked to my buddy at work who has a 89 4x4, he just did an engine swap also and he said it may be the oil preasure sending unit that's on the intake manifold next to the dizzy. My brothers was broken off so hee just plugged the hole with a fitting. From the way my buddy described the fitting on his it sounds just like what we're looking for. Thanks again. __________________ 1972 chevy cheyenne 10,nothing special at the moment,Its a work in progress, Working on the engine, paint and body,engine, paint and body,now its the suspenion, ahh hell I'm about tired of working on it. Maybe it will be a rat rod.

03-10-2006, 06:41 AM	#7
STEVE A WILBURN Registered User Join Date: Feb 2004 Location: TONEY ALA Posts: 307	Re: Need Help With An 88 K2500 I Looked Over My Books And Didnt See A Connector With The 3 Wires With Pink W/black Stripe And Orange Wire. I Did See A Pink One That Said It Went To A Fusible Link. Steve __________________ JUST HAPPY TO BE ALIVE.

03-10-2006, 11:21 PM	#8
roughedup72 Senior Member Join Date: Oct 2005 Location: south carolina Posts: 658	Re: Need Help With An 88 K2500 I may have been unclear on that connector, Let try to explain it again. It only has 2 wires, 1-orange and 1-pink with black stripe. See if there is a oil preasure sensor or switch on the top of the engine. Its on the drivers side one the back side of the intake.Thats all the info I have and the haynes manual dont show anything. Thanks again. __________________ 1972 chevy cheyenne 10,nothing special at the moment,Its a work in progress, Working on the engine, paint and body,engine, paint and body,now its the suspenion, ahh hell I'm about tired of working on it. Maybe it will be a rat rod.

03-24-2006, 03:55 PM	#9
roughedup72 Senior Member Join Date: Oct 2005 Location: south carolina Posts: 658	Re: Need Help With An 88 K2500 Its an oil preasure switch, these trucks have a oil preasure switch and a oil preasure sensor. Thanks for the help guys. __________________ 1972 chevy cheyenne 10,nothing special at the moment,Its a work in progress, Working on the engine, paint and body,engine, paint and body,now its the suspenion, ahh hell I'm about tired of working on it. Maybe it will be a rat rod.



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