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Chevy Blazer GMC Jimmy Maintenance and Repair

3449 messages,  Last post on Nov 07, 2009 at 8:55 AM

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#1541 of 3449 Re: How to replace my rear bearings on 99 [lahalo] by alcan Sep 11, 2005 (1:08 am)
Replying to: lahalo (Sep 09, 2005 3:17 pm) Not sure what a "pumpkin" is but here's the procedure for replacing axle seals/bearings. Requires opening up the differential housing and removing the axle shaft C lock:   Axle Shaft, Bearing and Seal GM S-Series Pick-ups and SUV's 1994-1999 Repair Guide   1. Raise and support the rear of the vehicle safely using jackstands. 2. Remove the rear wheel and brake drum. 3. Using a wire brush, clean the dirt/rust from around the rear axle cover. This should be done to help prevent foreign material from entering the rear axle and possibly damaging the differential. 4. Place a catch pan under the differential, then unscrew the retaining bolts and remove the rear cover. When removing the cover, a small prytool may be used at the base of the cover to gently pry it back from the axle housing, breaking the gasket seal and allowing the lubricant to drain out into the container. Be careful not to use excessive force and damage the cover or housing. 5. Remove the rear pinion shaft lockbolt and the pinion shaft from the differential.   http://www.autozone.com/images/cds/gif/medium/0900823d8018c464.gif   6. Push the axle shaft inward, then remove the C-lock from the button end of the axle shaft.   http://www.autozone.com/images/cds/gif/medium/0900823d8018c466.gif   7. Remove the axle shaft from the axle housing by pulling straight back on the shaft hub, be careful not to damage the oil seal with the shaft splines. 8. If the bearing and/or oil seal is being replaced, use a medium pry bar to carefully pry the old oil seal from the end of the rear axle housing. DO NOT score or damage the housing oil seal surface. 9. If the wheel bearing is being removed, use the GM slide hammer tool No. J-2619, along with adapter No. J-2619-4 and the axle bearing puller No. J-22813-01, or the equivalent tools to pull the bearing from the tube. Be sure to install the tool assembly so that the tangs engage the outer race of the bearing, then use the action of the slide hammer to withdraw the wheel bearing from the axle housing.   To install:   10. Clean and inspect the axle tube housing. 11. If the bearing was removed, thoroughly clean the wheel bearing using solvent, then blow dry with compressed air. DO NOT spin the bearing with the compressed air or damage may occur. Inspect the wheel bearing for excessive wear or damage. If it feels rough, replace it. 12. With a new or the reused bearing, place a blob of heavy grease in the palm of your hand, then work the bearing into the grease until it is thoroughly lubricated. Using an axle shaft bearing installer such as No. J-34974, J-23765 or equivalents, drive the bearing into the axle housing until it bottoms against the seat. 13. If the bearing and/or seal was removed, use an axle shaft seal installer tool such as No. J-33782, J-23771 or equivalents to drive the new seal into the housing until it is flush with the axle tube. If a seal installer is not available, a suitably sized driver or socket may be used, just make sure the surface in contact with the seal is smooth so that it won't damage the seal. 14. Using gear oil, lubricate the new seal lips. 15. Using a putty knife, clean the gasket mounting surfaces on the housing and cover. Take care to keep material out of the differential housing. If necessary, place a rag or paper towels over the differential while cleaning the housing flange.   When installing the axle shaft(s), be careful not to cut the oil seal lips.   16. Slide the axle shaft into the rear axle housing, taking care not to damage the seal, then engage the splines of the axle shaft with the splines of the rear axle side gear. 17. Install the C-lock retainer on the axle shaft button end. After the C-lock is installed, pull the axle shaft outward to seat the C-lock retainer in the counterbore of the side gears. 18. Install the pinion shaft through the case and the pinions, then install a new pinion shaft lockbolt. Tighten the new lockbolt to 27 ft. lbs. (36 Nm).   When adding oil to the rear axle, be aware that some locking differentials require the use of a special gear lubricant additive.   19. Install the rear cover using a new gasket and sealant. Tighten the retaining bolts using a crosswise pattern to 20 ft. lbs. (27 Nm). 20. Refill the rear axle housing using the proper grade and quantity of lubricant as detailed in Routine Maintenance of this repair guide. Install the filler plug, operate the vehicle and check for any leaks. Replies to this message: lahalo (Sep 11, 2005 1:25 pm) alcan (Sep 12, 2005 4:28 am)
#1542 of 3449 Weird Problem with my 97 Blazer need Help by 5peppers Sep 11, 2005 (9:05 am)
I have a 97 blazer i purchased used recently. While driving down the road you all of sudden lose power. At the same time the air bag light flickers on and off with the engine trying to run. I usally pull to the side of the road. The blazer never cuts off but runs just enough to keep the motor going. This will clear up after a minute. When the engine starts running ok again and you pull back on the road the transmisson shifts hard. If you cut the blazer off and then restart it the transmisson shifts smooth until it has another spell where it won't run right again. Has anyone had this problem or might know what is causing this. Thanks for the Help Replies to this message: hdsperglide (Sep 21, 2005 4:54 am)
#1543 of 3449 Re: How to replace my rear bearings on 99 [alcan] by lahalo Sep 11, 2005 (1:25 pm)
Replying to: alcan (Sep 11, 2005 1:08 am) Thank you so much for this information. I printed it out so the guy working on this can be sure to do it correctly! Thanks again for the help! Replies to this message: alcan (Sep 12, 2005 4:28 am)
#1544 of 3449 Re: How to replace my rear bearings on 99 [lahalo] by alcan Sep 12, 2005 (4:28 am)
Replying to: lahalo (Sep 11, 2005 1:25 pm) Yoou're welcome! Good luck with it.
#1545 of 3449 98 Blazer out of gas and then wouldn't start by raunchbag Sep 12, 2005 (10:28 am)
I'm hoping I don't have a bigger problem. I ran my Blazer out of gas - then put 2 gallons in it - turned it over and it wouldn't start. The starter was cranking and the electrical seems fine. Any suggestions? Is this one of those cars that needs to be put on an incline or decline to get the gas to have a little head start after running out? Thanks.
#1546 of 3449 Re: Please help with my 2001 Jimmy [truffle] by jeffhawn Sep 13, 2005 (11:22 am)
Replying to: truffle (Sep 06, 2005 4:59 pm) Have the wiring harnesses off the computer checked. I had a similar problem with the gauges and lights, but the truck would also shut-off. It turned out that 3 wires on the harness were exposed and causing a short-circuit. This may be the case with your truck too.
#1547 of 3449 Ignition Problems by frestyl Sep 14, 2005 (7:43 am)
While driving the other day my 98 jimmy lost power and i coasted to the side of the road where it then died. I wasn't able to get the truck to start after that. after getting it home I replaced the fuel filter and check the fuel pump all seemed good. When i tried to start the car would turn over and unsteadily idle for about 30 sec or so and when the accelerator was pressed it would die. After finding the locations of the ignition control I decided to disconnect the module and attempt a start. it acted the same just cranked and no turn over. With this what should I replace first the ignition module or the coil? Or would it be something else? I don't have access to a diagnostic reader so if any one knows how to jumper the connector to get a reading through the display let me know.   Thanks Replies to this message: alcan (Sep 14, 2005 12:55 pm) hdsperglide (Sep 16, 2005 2:50 pm)
#1548 of 3449 Re: Ignition Problems [frestyl] by alcan Sep 14, 2005 (12:55 pm)
Replying to: frestyl (Sep 14, 2005 7:43 am) Is the check engine light on? What's the fuel pressure reading? Is there a hot, blue spark when using a spark tester? Guessing and throwing parts at it gets expensive in a hurry.   "I don't have access to a diagnostic reader so if any one knows how to jumper the connector to get a reading through the display let me know"   Nope. A code reader or scanner is required.
#1549 of 3449 Re: 2001 Jimmy rear gate won't open [jeffhawn] by linda959 Sep 14, 2005 (1:59 pm)
Replying to: jeffhawn (Aug 09, 2005 6:42 am) Jeff, I checked all the fuses under the dash and under the hood.......all are fine. You can hear the lock working...actuator and sylenoid seem to be going good....replaced batter in key module just in case...didn't work. it is as if the glass part is just jammed for some reason. You can not take the back pannel off without opening the gate......am I just out of luck?? Replies to this message: mears (Sep 16, 2005 7:51 am)
#1550 of 3449 Re: 99 blazer 4wd engages by itself [avsrool] by mperson Sep 14, 2005 (8:27 pm)
Replying to: avsrool (Apr 12, 2005 6:28 am) I also have a similar problem with my 2001 blazer. I was changing oil a few months ago and the transfer case suddenly shifted into 4LO. After several attempts I got it to shift only back into AUTO4x4 (trans in neutral). Once in AUTO4x4 pushing 2HI sends it directly back to 4LO. 4HI button has no response. Finally I removed the battery cable for 5min or so and 2HI was then entered with no button pushing. I made this problem go away for awhile by removing the red + positive battery cable and cleaning all the corrosion on the cable end. I scraped the corrosion off with a flat blade screw driver and a steel brush until I saw bright copper cable end. Then I drove for 5min and the service 4x4 light didnt come on, so I tried all the 4x4 modes and they all worked perfectly. But this problem today came back to haunt me. I wish I could tell you more about a perminent repair without going to an expensive dealership. Unless you have found a repair since your problem has occured. ">link title Replies to this message: dolphinsfan196 (Oct 07, 2005 10:40 am) 98jmypells (Oct 25, 2005 10:10 am)

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