Question about 1991 Chevrolet C1500

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I need to know which wire on a 91 chevy c1500 coil to hook a tach wire to.

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Neg wire on coil

Posted on Sep 24, 2009

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1 Answer

I am hooking up a remote start on a 99 Chevy Astro & can not find a tach wire.


Hey I'm not an expert at remote starts I've only hooked up one in my life I have two of them one in my Durango & one in my Dakota Dakota was installed by best buy & Durango was installed by pc richards I'm not positive but I think tach wires are the same color on all remote starts and mine are purple the tach wire on the Durango is hooked to the #3 fuel injector wires & the Dakota wire is hooked to the coil but the tach wire is purple look back at installation directions you might have a defective remote start unit remember I said I'm not an expert I'm just going. By what I have I really hope this helped you oh by the way the van has an automatic tranny right? Good luck

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On a 1998 chevy cavalier what color wire do i hook the green off my tach to


The green wire from the tach goes to the negative side of the coil or if its an HEI distributor it will connect to the left of the hot wire going. to the distributor.

Apr 01, 2014 | 1998 Chevrolet Cavalier

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How do i hook up a tach to a 91 f-150 w/a 5.0engine


Hello thunderbaker

The input wire to your tach should be connected to the coil. If everything is original there should be a tan with yellow strip wire on the coil connect the tach wire there.

Regards,
netvan

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What do the symbols P and S stand for on terminals of the tachometer? 1978Chev.305 gas engine with distributor and coil.......jn my boat


tach hook up for chevy with hei distribitor is 1)white wire ; 12volt source 2)red wire -12 volt ignition switch (+) 3)black wire -battery ground (-) green wire ; to tach terminal on dist. / if it not hei with points just put green wire to neg. (-) side of coil

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Ignition coil


The tach wire tells the computer information it needs to have engine control.Please rate if this was helpful,thank you.

Jul 19, 2010 | 1990 Chevrolet C1500

1 Answer

I have a 94 chevy chyenne 6 cylinder that starts and runs until it gets hot and then it dies. after it sets it will start again. I was told by a friend it might be the coil in the distributor.


the way i would check this is too use timing light or a spark tester on the coil wire run motor until it stalls check for spark @ ignition coil if the pickup coil is failing you wont have any spark bare in mind the ignition module can do the same thing so can the ignition coil. the part in the distubutor is called the pickup coil there is couple ways to test this. there are wires going to the coil that come from distubutor one wire pulse fires the coil there is a wire by the coil its a tach test lead you hook up a 12 volt test light to battery positive and check for pulses after the stall ocurrs. also test before stalls so you know what to exspect.if the pulse trigger stop its either the pickup coil or the ignition module.hope this helps Thunderboltz

Jan 15, 2010 | 1994 Chevrolet C1500

1 Answer

Wiring an hei distributor


You shouldn't need a spark box because thee coil is located in the dist. cap. You need to run a 12v switched power source to the side of the dist. cap that is marked dist. if it isn't maked it is the term. that is on the front right of the conector pad. the one on the left is for hooking up a tach.

Oct 04, 2009 | 1986 Chevrolet C1500

1 Answer

Installing tach on 1997 airstream motorhome with chevy 454 gas power plant need color code for -side coil wire for tach pulse or other way to hook it up


That should be the white wire rom the dist to coil. eather way you will not hurt the tach if you were to get it wrong. There are only two wires. I would look at the distributor and on the top of the cap there it writing and it will say tach an you can plug it directli into that.

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1 Answer

91 s10 blazer tach signal wire. what wire is it and if u can please provide pics.


Coming off the coil there are two plugs both with two wires. One plug goes to the distributor. The other plug is the one you want. Tie into the white wire. Sometimes you will find a spade connector already hooked to this wire, hook to that.

May 26, 2009 | 1991 Chevrolet S-10

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