where is oil pressure switch on block?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Jason71k10 · 02-10-2003, 05:44 PM

I'm putting an after market triple gauge on my 71 k-10. Just wondering where the original sender is located on the block(350). right now, mine only has the ind. light, not a gauge, if this matters? thanks
Jason

72ChevyCheyenne · 02-10-2003, 05:51 PM

Right behind the intake.

*67Fleetsidedream* · 02-10-2003, 06:34 PM

Back behind the distributor.

Ben

Jason71k10 · 02-10-2003, 07:20 PM

Is it hard to get at?? I know there isn't a lot of room back there....

jmanz69 · 02-10-2003, 10:49 PM

It's not that hard to get to. You should be able to see it sticking up from the block back there. If you are going to a gauge, I hope it came with a sending unit too. Your warning light switch on there now won't work right with a gauge. You should get a new sending unit for gauges. They are cheap and should be able to be found at any parts store.

Jason71k10 · 02-10-2003, 11:20 PM

yeah, the gauges did come with sending units. so the nw should just screw right in where the old one was, right. Same thing for temp. sending unit (it's the one tucked just under the ex. manifold at the front, right?)......i think they will be easy....the ammeter may be a little tricky though.... thanks for the info guys

useRc10 · 02-11-2003, 01:10 PM

ok, i'm confused now...do trucks with gauges have an oip press. sending unit...i looked by the distributor on mine and all i see is a line that runs to the back of the gauge and reads back there...are some of them like mine and some witha sender on the engine

-Nick

Jason71k10 · 02-11-2003, 01:23 PM

Nick, trucks like your's with a gauge have a different sender, cuz trucks that use a mech.gauge have a small hose that runs from the sender to the gauge. One's like mine, that just has the indicator light, only have a wire that connects the light and the sender...........i think..haha j/k!

useRc10 · 02-11-2003, 01:25 PM

from what i can see though, the hose connects directly to the block...i dont see a sender on the black...maybe i just overlooked it?

Jason71k10 · 02-11-2003, 01:35 PM

hmmm......as far as i know, but a may be wrong there isn't an actual "sender", I'm pretty sure the hose fills with oil and goes to the gauge. The pressure from the oil then moves the needle. I don't think there is any kind of "pump" or anyhting....unless it's inside the block??
I'm FAR from an expert on this......i've only had my truck for year......hopefully someone that knows for sure will reply to this, and then we'll both know, Nick! haha

useRc10 · 02-11-2003, 01:42 PM

i know that oil is actually pumped to the gauge...i learned taht yesterday when i disconnected the gauges and drove the truck...i pumped a quart of oil onto my foot...probably ruined the carpet...i'm just trying to figure out why my speedo is the only working gauge...

mrein3 · 02-11-2003, 02:25 PM

I just happened to have a picture of an oil sender that works with an idiot light, not the gauge style. As you can see it is WAY back there. This picture was taken of an engine on a stand in my garage. That is a side angle of a spade terminal sticking up out of the switch. The wire Jason71k10 is talking about connects there.

Jason71k10 · 02-11-2003, 02:29 PM

That's awesome! thanks.....I was gonna ask if anyone had a pic...but I figured the chances would be pretty slim
So now I just unscrew that one and put the new gauge type in???

useRc10 · 02-11-2003, 02:36 PM

anybody have a pic of a gauge type?

gmc-rob · 02-11-2003, 08:05 PM

It is in the same spot, a mechanical guage has an oil line coming out of the same spot, and an electrical guage has the sending unit that also threads into the same spot. Hope that helps.

ROB

useRc10 · 02-12-2003, 12:05 AM

so there are 2 types of gauges and the light type that came on teh trucks?...beginning to undertsnad...its been too long since all my gauges worked and i'm trying to revive them

02-10-2003, 05:44 PM	#1
Jason71k10 ready for reassembly Join Date: Jun 2002 Location: Barrie ONT, Canada Posts: 413	where is oil pressure switch on block?? I'm putting an after market triple gauge on my 71 k-10. Just wondering where the original sender is located on the block(350). right now, mine only has the ind. light, not a gauge, if this matters? thanks Jason

02-10-2003, 05:51 PM	#2
72ChevyCheyenne Registered User Join Date: May 2002 Location: Woodstock, GA USA Posts: 300	Right behind the intake. __________________ Bill Durham http://home.attbi.com/~bulldurham 72 Cheyenne Restoration in progress Currently: frame sand blasted and powdercoated, Inline Tube brake and fuel lines, Blazer tank in rear, Holley Red electronic fuel pump, Eaton posi with 3.42 gears, 2 1/2" drop front spindles, 4" drop rear springs with adjustable panhard bar, KYB shocks, ZZ 502/502 GM Performance crate engine, Zoops brackets and pulleys, Vintage Air, dual electric fans, Ram Air II hood and late model sport side bed.

02-10-2003, 11:20 PM	#6
Jason71k10 ready for reassembly Join Date: Jun 2002 Location: Barrie ONT, Canada Posts: 413	yeah, the gauges did come with sending units. so the nw should just screw right in where the old one was, right. Same thing for temp. sending unit (it's the one tucked just under the ex. manifold at the front, right?)......i think they will be easy....the ammeter may be a little tricky though.... thanks for the info guys __________________ stock 71 4x4 2003 Jeep Liberty, rocky mountain edition I'm obsessed, and wouldn't have it any other way!

02-11-2003, 01:10 PM	#7
useRc10 Registered User Join Date: Feb 2001 Location: Mechanicsville, VA, 23111 Posts: 1,138	ok, i'm confused now...do trucks with gauges have an oip press. sending unit...i looked by the distributor on mine and all i see is a line that runs to the back of the gauge and reads back there...are some of them like mine and some witha sender on the engine -Nick __________________ -'02 Chevy Avalanche, 5.3L, 4x4... needing a small lift and bigger tires -'72 Chevy C-10(350, bored 60 over)dual flowmasters, 3 on the tree -'85 K5 Blazer,305 NO MORE...350 is in,2" lift,33" Mickey Thompson Baja Claw Radials -dads '70 burb (red, 5-7 drop, 350...) www.geocities.com/userc10/truckhome.html AIM: Auntjoedadda

02-11-2003, 01:23 PM	#8
Jason71k10 ready for reassembly Join Date: Jun 2002 Location: Barrie ONT, Canada Posts: 413	Nick, trucks like your's with a gauge have a different sender, cuz trucks that use a mech.gauge have a small hose that runs from the sender to the gauge. One's like mine, that just has the indicator light, only have a wire that connects the light and the sender...........i think..haha j/k! __________________ stock 71 4x4 2003 Jeep Liberty, rocky mountain edition I'm obsessed, and wouldn't have it any other way!

02-10-2003, 06:34 PM	#3
67Fleetsidedream Wiseass secured himself a BAN Join Date: Nov 2000 Location: MOON!!! Posts: 2,282	Back behind the distributor. Ben

02-10-2003, 07:20 PM	#4
Jason71k10 ready for reassembly Join Date: Jun 2002 Location: Barrie ONT, Canada Posts: 413	Is it hard to get at?? I know there isn't a lot of room back there....

02-10-2003, 10:49 PM	#5
jmanz69 Careful, they attack... Join Date: Aug 2001 Location: Waterford, MI, USA Posts: 1,107	It's not that hard to get to. You should be able to see it sticking up from the block back there. If you are going to a gauge, I hope it came with a sending unit too. Your warning light switch on there now won't work right with a gauge. You should get a new sending unit for gauges. They are cheap and should be able to be found at any parts store.

02-11-2003, 01:25 PM	#9
useRc10 Registered User Join Date: Feb 2001 Location: Mechanicsville, VA, 23111 Posts: 1,138	from what i can see though, the hose connects directly to the block...i dont see a sender on the black...maybe i just overlooked it? __________________ -'02 Chevy Avalanche, 5.3L, 4x4... needing a small lift and bigger tires -'72 Chevy C-10(350, bored 60 over)dual flowmasters, 3 on the tree -'85 K5 Blazer,305 NO MORE...350 is in,2" lift,33" Mickey Thompson Baja Claw Radials -dads '70 burb (red, 5-7 drop, 350...) www.geocities.com/userc10/truckhome.html AIM: Auntjoedadda

02-11-2003, 01:35 PM	#10
Jason71k10 ready for reassembly Join Date: Jun 2002 Location: Barrie ONT, Canada Posts: 413	hmmm......as far as i know, but a may be wrong there isn't an actual "sender", I'm pretty sure the hose fills with oil and goes to the gauge. The pressure from the oil then moves the needle. I don't think there is any kind of "pump" or anyhting....unless it's inside the block?? I'm FAR from an expert on this......i've only had my truck for year......hopefully someone that knows for sure will reply to this, and then we'll both know, Nick! haha __________________ stock 71 4x4 2003 Jeep Liberty, rocky mountain edition I'm obsessed, and wouldn't have it any other way!

02-11-2003, 01:42 PM	#11
useRc10 Registered User Join Date: Feb 2001 Location: Mechanicsville, VA, 23111 Posts: 1,138	i know that oil is actually pumped to the gauge...i learned taht yesterday when i disconnected the gauges and drove the truck...i pumped a quart of oil onto my foot...probably ruined the carpet...i'm just trying to figure out why my speedo is the only working gauge... __________________ -'02 Chevy Avalanche, 5.3L, 4x4... needing a small lift and bigger tires -'72 Chevy C-10(350, bored 60 over)dual flowmasters, 3 on the tree -'85 K5 Blazer,305 NO MORE...350 is in,2" lift,33" Mickey Thompson Baja Claw Radials -dads '70 burb (red, 5-7 drop, 350...) www.geocities.com/userc10/truckhome.html AIM: Auntjoedadda

02-11-2003, 02:25 PM	#12
mrein3 Registered User Join Date: Feb 2000 Location: Center City, MN, USA Posts: 3,254	I just happened to have a picture of an oil sender that works with an idiot light, not the gauge style. As you can see it is WAY back there. This picture was taken of an engine on a stand in my garage. That is a side angle of a spade terminal sticking up out of the switch. The wire Jason71k10 is talking about connects there. Attached Images __________________ '70 cab, '71 chassis, 383, TH350, NP205. '71 Malibu convertible '72 Malibu hard top Center City, MN

02-11-2003, 02:29 PM	#13
Jason71k10 ready for reassembly Join Date: Jun 2002 Location: Barrie ONT, Canada Posts: 413	That's awesome! thanks.....I was gonna ask if anyone had a pic...but I figured the chances would be pretty slim So now I just unscrew that one and put the new gauge type in??? __________________ stock 71 4x4 2003 Jeep Liberty, rocky mountain edition I'm obsessed, and wouldn't have it any other way!

02-11-2003, 02:36 PM	#14
useRc10 Registered User Join Date: Feb 2001 Location: Mechanicsville, VA, 23111 Posts: 1,138	anybody have a pic of a gauge type? __________________ -'02 Chevy Avalanche, 5.3L, 4x4... needing a small lift and bigger tires -'72 Chevy C-10(350, bored 60 over)dual flowmasters, 3 on the tree -'85 K5 Blazer,305 NO MORE...350 is in,2" lift,33" Mickey Thompson Baja Claw Radials -dads '70 burb (red, 5-7 drop, 350...) www.geocities.com/userc10/truckhome.html AIM: Auntjoedadda

02-11-2003, 08:05 PM	#15
gmc-rob Registered User Join Date: Apr 2002 Location: Saskatoon,SK Canada Posts: 41	It is in the same spot, a mechanical guage has an oil line coming out of the same spot, and an electrical guage has the sending unit that also threads into the same spot. Hope that helps. ROB



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02-12-2003, 12:05 AM	#16
useRc10 Registered User Join Date: Feb 2001 Location: Mechanicsville, VA, 23111 Posts: 1,138	so there are 2 types of gauges and the light type that came on teh trucks?...beginning to undertsnad...its been too long since all my gauges worked and i'm trying to revive them __________________ -'02 Chevy Avalanche, 5.3L, 4x4... needing a small lift and bigger tires -'72 Chevy C-10(350, bored 60 over)dual flowmasters, 3 on the tree -'85 K5 Blazer,305 NO MORE...350 is in,2" lift,33" Mickey Thompson Baja Claw Radials -dads '70 burb (red, 5-7 drop, 350...) www.geocities.com/userc10/truckhome.html AIM: Auntjoedadda

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