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Automotive Repair Car Troubleshooting Topics   Car Troubleshooting   Engine Troubleshooting   Engine Fault Codes   Electrical and Wiring   Transmission Problems Car Repair Topics   Car Making Noises   Car Stereo Repair   Heating or AC Issues   Motorcycles and ATVs   Tricks of the Trade   Truck Repair Advice Site Options:      Login   Sign up here! Latest Forum Post   Super Bird , don't see that every day Had to go down to the corner diner and c...   Sanded rotors (deep scratches) I'm new to the forum and I have a couple...   Rear brake retaining clips 2015 Toyota Camry. I bought Import Direc...   2010 Mazda 3 Electrical Going On and Off while driving I drive a 2010 Mazda 3. It's always been...     Car idles funny but doesn't throw codes 2006 Hyundai Elantra Engine size: 2.0L m...   Code P0193 Fuel Rail Pressure Sensor Circuit High Bank 1 2004 Ford E-350 Super Duty Ext Cargo Van...   speedometer wild deflections; sometime pump gas 1999 Gmc Savana, rwd, 5.7 (I think) v8 ...   Car stalling problem My 2013 hyundai started losing power whe...   2018 Kia soul. Knocking while accelerating. Hello, my 2018 Kia soul started making t...     2005 Buick Lesabre surging My 2005 Buick Lesabre runs good & th...

94 S10 BLAZER NO 4WD Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Automotive Repair>> Car Troubleshooting DCDSHADE Novice Dec 6, 2007, 8:16 PM Post #1 of 4 (2456 views) 94 S10 BLAZER NO 4WD Sign In THE 4WD WILL NOT ENGAGE. IT IS A NP233 TRANFER CASE. THE AUTOMATIC TRANSMISSION IS WORKING FINE. THE 4WD HI AND LOW LIGHTS DO NOT COME ON WHEN THE SWITCH IS PUSHED. THE SWITCH IS GOOD AND I GET 5 VOLTS TO THE TRANFER CASE ON 4 OF THE SEVEN WIRES. WHERE ELSE SHOULD I LOOK? Guest Anonymous Poster Jan 7, 2008, 1:38 PM Post #2 of 4 (2428 views) Re: 94 S10 BLAZER NO 4WD Sign In your problem is located under the batteery there is a vacum actuted pump that locks the front axel in. coasts about 50 bucks and is an easy fix DCDSHADE Novice Jan 8, 2008, 4:15 PM Post #3 of 4 (2419 views) Re: 94 S10 BLAZER NO 4WD Sign In THANKS. I THOUGHT THAT MIGHT BE A PROBLEM BUT I CAN HEAR THE PUMP ACTIVATE WHEN I WAS ABLE TO GET THE TRANSFER CASE INTO 4WD. I WAS PLAYING WITH THE BUTTON AND THE TRANSMISSION SHIFTER TO GET IT INTO 4WD. I HAD SOMEONE LOOK AT IT AND THEY BELIEVE THE SERVO ACTUATOR MOTOR IS NOT WORKING. I BEEN SICK WITH THE FLU AND I AM GETTING READY TO TACKLE THIS PROBLEM AGAIN. way2old Veteran / Moderator Jan 8, 2008, 4:48 PM Post #4 of 4 (2417 views) Re: 94 S10 BLAZER NO 4WD Sign In There is also a vacuum switch on the side of the transmission. All it is is a ball that moves one way with vacuum and falls back without vacuum. These will hang up and cause no engagemnet. Cheap part too. Being way2old is why I need help from younger minds   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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