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SUVs GMC Jimmy Encoder Motor Problem for 97 GMC Jimmy
40 messages, Last post on Oct 26, 2009 at 4:26 PM
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Everytime I drive and get on the throttle until I get up to around 40 or 50 miles per hour and then back off the throttle, I begin to hear a whiring noise from the front end, sounds kinda like a drill scoring metal. Anyway, I've changed the control switch on the dash, and had the encoder motor replaced and it still does this when I get on the throttle. Does anyone have any ideas what exactly the problem might be? My mechanic says that it sounds like the 4-wheel drive is trying to engage at a high speed, however, I'm not sure anymore since I had those things repaired.
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Replying to: willg121 (Sep 18, 2006 4:36 pm) A final problem/fix these have is the computer sometimes hangs up so disconncet the battery for 30 minutes and then reconnect and see it the condition clears - it sometimes does.
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My next question is, how costly is this to repair if it's indeed the vac line leaking or the diaphram leaking? I mean, I've put in a lot of money to fix this truck. First it was the fuel pump dying on me, and now this. I'm hoping this is the last repair I have to do to this truck.
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Replying to: willg121 (Sep 18, 2006 5:16 pm) |
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Like the title says. Anyway, I'm going to just get it fixed, whatever it costs is whatever it costs. I just hate the labor aspect.
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Replying to: willg121 (Sep 19, 2006 5:23 am) |
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I had all the things you said checked, and nobody can find anything wrong anywhere. Fluid levels were good, vac hoses were good. So I don't know what else there might be. Any ideas? Also, I'm going to take my truck off of its battery for the half hour you suggested when I return from an errand, but otherwise everything else checked out. |
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I have a 99' Chev Blazer and went to use the 4x4, but to no avail. I can press the button on the fly and in park and in neutral and nothing. All it does is flash the 4hi button and goes back to 2hi. I can hear it trying to engage at the transfer case but it sound like the encoder motor is seized or dying. It does this as well when I try 4lo. I'm at the end of my rope this ride as it only has 120,000 km. I've replaced so much it's rediculous. I need to fix to sell....Thanks Jay
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Replying to: jackassjay (Oct 31, 2006 9:11 pm) |
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Replying to: repairdog (Sep 18, 2006 5:04 pm)
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