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'91 S10 BLAZER 4.3 wont idle,need sensor locations
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xixi56
Novice
Feb 26, 2014, 11:32 AM
Post #1 of 15
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'91 S10 BLAZER 4.3 wont idle,need sensor locations
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I need the location of all the idle control sensors for my '91 S10 Blazer 4.3. I replaced the distributor cuz we thought the module was bad..but it didnt fix the idle problem. It wont idle cold or hot,has no fast idle when cold. We have to 2 foot it. One foot on the gas one on the brake to keep it running. It was running fine, then 1 day it just stopped idling. And theres no Idle adjustment screw on the throttle body.
(This post was edited by xixi56 on Feb 26, 2014, 11:34 AM)
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Discretesignals
Ultimate Carjunky
/ Moderator
Feb 26, 2014, 11:55 AM
Post #2 of 15
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Re: '91 S10 BLAZER 4.3 wont idle,need sensor locations
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There is no idle sensor. There is an idle control valve though which is screwed into the throttle body. item #4 in pic: Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Feb 26, 2014, 11:58 AM)
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kev2
Veteran
Feb 26, 2014, 1:26 PM
Post #3 of 15
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Re: '91 S10 BLAZER 4.3 wont idle,need sensor locations
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you might want to start by getting any codes... might be a clue.. too easy to ignore. as mentioned the IAC - elec connector tight no corrosion wires not pulled or damaged? the idle speed is set by the ECM - takes into decission - temperature and RPM - anything not working such as tach? temp gaugge? and no recient work or repairs.
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xixi56
Novice
Feb 27, 2014, 6:30 PM
Post #4 of 15
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Re: '91 S10 BLAZER 4.3 wont idle,need sensor locations
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Thanks this helps
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xixi56
Novice
Feb 27, 2014, 6:35 PM
Post #5 of 15
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Re: '91 S10 BLAZER 4.3 wont idle,need sensor locations
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Hi & Thanks for your help. What is the name of the electric switch on the right side of the manifold. It has FUEL stamped on it. And has 2 vacuum lines on the back & a big plug? Speedometer stopped working today while driving it also. hmmm.
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Discretesignals
Ultimate Carjunky
/ Moderator
Feb 27, 2014, 6:46 PM
Post #6 of 15
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Re: '91 S10 BLAZER 4.3 wont idle,need sensor locations
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Can you take a pic of it and post the link in here? Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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xixi56
Novice
Feb 27, 2014, 9:59 PM
Post #7 of 15
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Re: '91 S10 BLAZER 4.3 wont idle,need sensor locations
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SURE, I'LL DO IT TOMORROW. THANKS
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xixi56
Novice
Feb 28, 2014, 1:02 PM
Post #8 of 15
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Re: '91 S10 BLAZER 4.3 wont idle,need sensor locations
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Hi, for some reason, I cant make my pic small enuf to post to this site, is there anywhere else I can send it? I cant go as small as 50kb.
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Hammer Time
Ultimate Carjunky
/ Moderator
Feb 28, 2014, 1:04 PM
Post #9 of 15
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Re: '91 S10 BLAZER 4.3 wont idle,need sensor locations
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That's for your avatar. Upload your pic to an image hosting site like Photobucket and they will supply a link to make it show up here. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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xixi56
Novice
Feb 28, 2014, 1:18 PM
Post #10 of 15
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Re: '91 S10 BLAZER 4.3 wont idle,need sensor locations
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Ok, thanks I'll get right to it, I do have a photobucket acct.
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Hammer Time
Ultimate Carjunky
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Feb 28, 2014, 1:23 PM
Post #11 of 15
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Re: '91 S10 BLAZER 4.3 wont idle,need sensor locations
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Please make sure the picture is reduced at least enough so it doesn't hang off the side of the page. It makes the tread too hard to read. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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xixi56
Novice
Feb 28, 2014, 3:29 PM
Post #12 of 15
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Re: '91 S10 BLAZER 4.3 wont idle,need sensor locations
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Well, I cant seem to get it to you, any way you can give me a temporary email address?
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Hammer Time
Ultimate Carjunky
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Feb 28, 2014, 3:33 PM
Post #13 of 15
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Re: '91 S10 BLAZER 4.3 wont idle,need sensor locations
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Photobucket works. We all use it. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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xixi56
Novice
Feb 28, 2014, 3:51 PM
Post #14 of 15
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Re: '91 S10 BLAZER 4.3 wont idle,need sensor locations
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I know it works, Im just not that computer literate to get it to you. Thanks for the help you've given me.
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Hammer Time
Ultimate Carjunky
/ Moderator
Feb 28, 2014, 4:20 PM
Post #15 of 15
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Re: '91 S10 BLAZER 4.3 wont idle,need sensor locations
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Simply upload the photo to Photobucket. Under the picture there will be a series of links. Look for one one that says image (IMG), highlight it, copy it and paste it in your forum window. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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