98 chevy 4wd not working. I read the power to that plug and had 12 volts. I followed ylab's advice and pulled the fuse under the hood for the tcm. Aug 11, 2007 · 4wd Not Working, Where To Start? By tackepj August 11, 2007 in 1988-1999 Chevrolet & GMC C/K GMT400 Platform Apr 16, 2010 · I have 2004 Silverado with this same issue (No lights on selector and no service 4wd indicator). The lights on the 4lo/hi switches blink. Lifted whole truck and could turn front wheels by turning driveshaft by hand. Jul 21, 2025 · I've never done this. Save on a used Chevrolet Colorado in Mount Sterling, WI on CarGurus. . I recommend that folks with the electric shift 4WD carry a connector from a donor vehicle that has leads attached to it that will reach the battery. Is your 4WD light flashing? Will your 4WD not engage? Is your 4WD warning light on or a "Service 4WD System" message displayed? Please read the article below for information, common problems, and possible solutions to these issues. I took the time to make one as I troubleshoot my 1996 pushbutton 4wd which had random flashing indicator lights and then would not shift from 2-4wd at all. I have checked the fuses (2). I can hear the transfer case shift into 4LO, and the front drive shaft engages, but the front wheels don’t lock up. 2WD worked fine. In s10s, when you put it in 4wd Mar 28, 2003 · Reinstall and test. Save on a Silver Chevrolet Silverado 2500HD in West Virginia on CarGurus. I have gotten a PM from somebody, and I figured I could share some of the info with everyone. i checked to make sure fuses were not blown already. Browse the best deals on a used Chevrolet Colorado for sale with low mileage. Explore the Chevy 4x4 actuator diagram and learn how it works to engage and disengage the four-wheel drive system in your Chevrolet vehicle. Not sure where to go next. I have a 1998 z71 4wd truck that I have owned for 10 yrs. 1995 Chevy K1500 - 4x4 Thermal to Motorized Actuator Upgrade - Tips n Tricks 1997 Chevy 1500 Four Wheel Drive (4X4) not Working Diagnose & Repair 4wd dash switch 99/98 gm suburban / 4wd trouble Aug 23, 2013 · The ’88-’98 GMC and Chevy 1500 trucks were a huge hit for GM and still wildly popular today. Dec 13, 2007 · A lot of people have problems with their 4x4 not working for various reasons. This has fixed many units and I know about some working 5-6 years later. Sep 16, 2015 · We have a 1988 4wd Chevy pickup and the 4 wd drive worked when we bought it, but the next time we tried it, it doesn't work. Replacement and diagnose of 4WD linear actuator. I have replaced the actuator on the front transfer case. I had a new engine and transmission installed two years ago, and this is the first time I’ve tested the 4WD since then. The connector you want is in the cluster of wires to the left of the master cylinder. Money is Customer: My 1998 SUV with 4WD is not engaging. Browse the best deals on a Silver Chevrolet Silverado 2500HD for sale. i now have Service 4wd on the dash and the selector lights up when keyed on but it is still not working. Find detailed diagrams and explanations to understand the inner workings of the actuator and troubleshoot any issues that may arise on your 4x4 system. Took off the actuator and one of the wires was broken, so we bought a new actuator and put it on, but it did not fix it. We would like to show you a description here but the site won’t allow us. 4WD wasn't working, but all the button lights worked and could hear both actuators engaging and disengaging. Lifted front RH wheel in 4WD and could still turn wheel. I recently replaced the trans and it works fine, but the 4wd doesnt engage. May 31, 2006 · Here's some info on how the 4wd system operates on newer Blazers for all those searching for the cause of the flashing dash switch light and no engagement. 4WD System Operation on 98 up (2nd Generation) Blazers/Jimmies The front drive shaft always turns on “shift on the fly” systems so the drive train is at the same speed in the front as the rear or the whole thing would break when Apr 23, 2012 · How to fix common push button 4wd problems: If you have codes 2 or 3 check all the encoder motor connections at the transfer case, if those check out OK, you will probably need a new encoder motor. In 4 HI, the lights just flash, and it returns to 2 HI. One of the common reasons is the vacuum actuator going bad or the vacuum lines going to it. Linear actuator failure on 98 chevy k1500. yhqll llo tszfw kzasma sltv adasz ekii kehscs kamn hedf