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12-14-2011, 09:53 PM
Replies: 28
Views: 52,275
Posted By Mark_D

The flickering also makes it sound like it could...

The flickering also makes it sound like it could be a faulty ground. Check the thread below (and links within the thread) for images showing where the 3 grounds behind the dash are. Make sure they...
12-13-2011, 07:52 PM
Replies: 28
Views: 52,275
Posted By Mark_D

Hey, I had a similar problem with my 4wd/gauges...

Hey, I had a similar problem with my 4wd/gauges and it turned out to be the Front Axle Engagement Switch. Messed up a bunch of the gauges including the data that shows on the overhead LED screen.
...
12-13-2011, 07:45 PM
Replies: 17
Views: 34,827
Posted By Mark_D

AWESOME! A new Front Axle Engagement Switch for...

AWESOME! A new Front Axle Engagement Switch for $13.00 appears to have fixed the problem with the 4wd fuse constantly blowing as well as the problem of the temp, fuel, & outside temp gauges and gear...
12-12-2011, 10:19 PM
Replies: 17
Views: 34,827
Posted By Mark_D

To do my part, I took some photos of the Switch...

To do my part, I took some photos of the Switch installed in the hope that it helps someone else solve a problem:
...
12-12-2011, 09:23 PM
Replies: 17
Views: 34,827
Posted By Mark_D

Thank you VERY much for your help! I just wanted...

Thank you VERY much for your help! I just wanted to make sure that I had things straight. I am going to put a new switch in tomorrow and will post what happens.
12-12-2011, 09:02 PM
Replies: 17
Views: 34,827
Posted By Mark_D

Those parts look like the same part that people...

Those parts look like the same part that people list as the "Transfer Case Engagement Switch." Is this correct even though the transfer case is back by the transmission?
12-12-2011, 07:37 PM
Replies: 17
Views: 34,827
Posted By Mark_D

Thank you for the quick reply! I thought...

Thank you for the quick reply!

I thought that was what is was called, but since I could not find it in any of my go-to auto part websites I thought maybe I was wrong. What is the catalog name for...
12-12-2011, 06:37 PM
Replies: 17
Views: 34,827
Posted By Mark_D

Thanks for the reply...I knew that resistance...

Thanks for the reply...I knew that resistance seemed high! I'll aim to check and fix the grounds one day soon.

Today I checked out whatever connector it is that is on the front axle on the...
12-11-2011, 03:34 PM
Replies: 17
Views: 34,827
Posted By Mark_D

So I checked those grounds on the firewall and...

So I checked those grounds on the firewall and with a multimeter, the grounding studs to the negative terminal on the battery read ~40 Ohms resistance. That seemed high, so I ran a new, temporary...
12-08-2011, 06:58 AM
Replies: 17
Views: 34,827
Posted By Mark_D

Thanks for the schematics guys! I got under...

Thanks for the schematics guys! I got under there last night and found the ground wires and they appear to be tightly connected. They were behind a rubber sheet and foam padding and were a real...
12-07-2011, 12:14 PM
Replies: 17
Views: 34,827
Posted By Mark_D

Thanks! The image with the grounds will...

Thanks! The image with the grounds will definitely help, as I plan to go find them after work today.

I managed to remove most of the 4wd components from the list of suspects since I can shift...
12-06-2011, 11:48 AM
Replies: 17
Views: 34,827
Posted By Mark_D

Ok, well as a start, does anyone know the exact...

Ok, well as a start, does anyone know the exact location of the grounds for the dashboard electronics? I was told there should be one right by the driver's left knee. I've seen that screw but aside...
12-05-2011, 09:40 PM
Replies: 17
Views: 34,827
Posted By Mark_D

1998 Blazer 4wd Wiring Diagrams Please!

HI, does anybody have wiring diagrams that show all or some of the 4wd circuit, which is Fuse 15 in the I/P fuse box?

I'm trying to track down a short in the 4wd circuit and cannot find the...
12-05-2011, 09:27 PM
Replies: 28
Views: 52,275
Posted By Mark_D

I am having a similar problem where the 4wd...

I am having a similar problem where the 4wd circuit is shorting and incidentally (like you) the temperature/compass digital readout is not working right. Mine doesn't flicker but rather read "--"...
12-05-2011, 07:45 PM
Replies: 34
Views: 13,597
Posted By Mark_D

I replaced the Pitman, Idler, Upper Ball Joints,...

I replaced the Pitman, Idler, Upper Ball Joints, and sway bar bushings with MOOG and the truck drives better than ever. I think it is worth it to fork over a little more money for the best. In my...
12-05-2011, 07:39 PM
Replies: 3
Views: 664
Posted By Mark_D

This old, but just to follow up, I changed the...

This old, but just to follow up, I changed the thermostat and radiator cap and that fixed it. 2 easy and cheap fixes.
11-16-2011, 09:39 AM
Replies: 1
Views: 6,881
Posted By Mark_D

The grinding you describe sounds like it could be...

The grinding you describe sounds like it could be the front axle partially engaging, which there is a lot of information about on this forum. Usually it is a problem with the vacuum [solenoid?]...
11-08-2011, 03:07 PM
Replies: 11
Views: 16,378
Posted By Mark_D

Thanks, those are good things for me to chew...

Thanks, those are good things for me to chew on...sounds like replacing the PCM is going to require a little more than I'm willing to do with this truck :( I don't want to pay an arm and leg for the...
11-08-2011, 02:25 PM
Replies: 11
Views: 16,378
Posted By Mark_D

Thanks, I know what you're talking about and PCM...

Thanks, I know what you're talking about and PCM definitely brings to mind a lot of material that I've seen on here and in my manual.

If a short circuit is happening in the PCM is there hope that...
11-08-2011, 01:21 PM
Replies: 11
Views: 16,378
Posted By Mark_D

Where is the VCM located in a 1998 Blazer? ...

Where is the VCM located in a 1998 Blazer? Judging by the wiring diagram it looks like it is under the hood, but can anyone give me a more specific location?

Also, does the VCM go by any other...
11-06-2011, 06:22 PM
Replies: 4
Views: 1,746
Posted By Mark_D

Just for kicks I thought I'd see if the the 4wd...

Just for kicks I thought I'd see if the the 4wd selector switch had gone bad, since it is near the gauge cluster. I unplugged both cables that come out of the switch and then put a new fuse in the...
11-06-2011, 05:41 PM
Replies: 4
Views: 1,746
Posted By Mark_D

So I went ahead and replaced the ignition switch...

So I went ahead and replaced the ignition switch because all of my symptoms could be described by an ignition switch failure. $73 later the problem still happens. I would like to offer some more...
11-06-2011, 05:29 PM
Replies: 9
Views: 16,028
Posted By Mark_D

I saw the new, reasonably priced arms with...

I saw the new, reasonably priced arms with bushings and thought about it, but ultimately did it myself. Well the assembly at least. Some lame new rules at work prevent me from using the presses I...
11-06-2011, 09:10 AM
Replies: 29
Views: 41,098
Posted By Mark_D

Found the How-To Install Ignition Switch forum: ...

Found the How-To Install Ignition Switch forum:

https://blazerforum.com/forum/article-submissions-discussions-47/how-ignition-switch-replacement-discussion-thread-26553/
11-06-2011, 09:06 AM
Replies: 29
Views: 41,098
Posted By Mark_D

I KNOW I've seen a how-to for removing and...

I KNOW I've seen a how-to for removing and installing the switch but I can't seem to find it this morning. Does anyone know where to find or feel helpful enough to post a link here? Thanks a ton! ...
08-07-2011, 08:03 PM
Replies: 4
Views: 1,746
Posted By Mark_D

Wow, thanks for the info Mark! I have never seen...

Wow, thanks for the info Mark! I have never seen SC or OC in the display but now I know how it is connected and where that gauge is should I have to get to it. It just shows "--" any place that a...
08-06-2011, 11:51 AM
Replies: 4
Views: 1,746
Posted By Mark_D

Fuel and Temp Gauges out, Truck Shuts Down when Hot

Hi,
So the oddities started happening about 2 weeks ago when I was on the highway and it was 111 degrees. The truck just shut off at ~65mph and I had to wait for it to cool down a bit and then...
07-26-2011, 08:08 AM
Replies: 22
Views: 45,880
Posted By Mark_D

Hey guys this seems to be the most relevant...

Hey guys this seems to be the most relevant thread so I'll ask my question here. Should the front driveshaft have any play in it? If I grab the front driveshaft (between transfer case and front...
07-06-2011, 08:57 PM
Replies: 1
Views: 1,717
Posted By Mark_D

It would be easy enough to check the rag joint,...

It would be easy enough to check the rag joint, just have someone turn the steering wheel while you look at the joint and see if it looks loose. Also check whether the steering box output looks like...
06-28-2011, 09:29 PM
Replies: 5
Views: 24,719
Posted By Mark_D

Hi, I'm trying to remove my torsion bars to...

Hi, I'm trying to remove my torsion bars to replace all of the front end bushings. I tried the method described above which is also in the Haynes manual, using a 2-jaw puller but it isn't working.
...
06-27-2011, 06:52 PM
Replies: 9
Views: 16,028
Posted By Mark_D

Thanks for the input jvarugh. My local National...

Thanks for the input jvarugh. My local National Auto Parts store is cool and charges me 'shop price' for parts, so I'm going to replace all ball joints and control arm bushings with Moog parts...
06-18-2011, 08:36 AM
Replies: 9
Views: 16,028
Posted By Mark_D

My mechanic has since put the weights on the...

My mechanic has since put the weights on the outside and yea, they do look ugly. Not to mention the marks they may leave when they eventually come off. My rims are black, so I colored any of the...
06-17-2011, 11:39 AM
Replies: 9
Views: 16,028
Posted By Mark_D

Well this thread hasn't gotten much attention,...

Well this thread hasn't gotten much attention, but I may as well follow through and say I bought new upper and lower control arm bushings from Moog and will put them in soon.
05-09-2011, 09:43 PM
Replies: 9
Views: 16,028
Posted By Mark_D

Thanks for your insight into this problem! I...

Thanks for your insight into this problem! I thought it was strange that he thought this but mostly because of the heinous silver weights on my black rims. A black paint pen solved my problem there...
05-09-2011, 07:14 PM
Replies: 9
Views: 16,028
Posted By Mark_D

Mechanic Says my Upper Control Arm Bushings are Shot but...

So my Blazer has some shaking issues which I've been fighting with for some time now. I dropped it off at the mechanic to diagnose this recently and he said the Upper Control Arm Bushings are shot...
04-29-2011, 08:40 PM
Replies: 11
Views: 3,034
Posted By Mark_D

Ah, left in the dark! I have the same problem...

Ah, left in the dark! I have the same problem and replaced a rear 1/2 axle which I thought was the culprit. Also put on 4 new tires. Still shaking and am losing patience - might have to pay...
Forum: General Chat
04-29-2011, 08:36 PM
Replies: 2
Views: 4,435
Posted By Mark_D

Bent Disc Guard Screeching on Disc

Has anyone else ever had this happen? I was working on a ski slope w/ the Blazer and drove down the fire road. It was a little bumpy but when I got to the bottom my front wheels started screeching...
Forum: The Lounge
04-29-2011, 08:29 PM
Replies: 649
Views: 25,395
Posted By Mark_D

The Boatman - Yonder Mountain String Band

The Boatman - Yonder Mountain String Band
Forum: Lifting Tech
04-29-2011, 07:34 AM
Replies: 286
Views: 263,913
Posted By Mark_D

This seems like the most appropriate place to...

This seems like the most appropriate place to ask, so I will:

Does anyone know if a 1.5-2" shackle lift could be enough to cause the driveshaft to wobble by taking the drive angles out of spec.? ...
04-21-2011, 06:56 PM
Replies: 36
Views: 8,784
Posted By Mark_D

Just picked my Blazer up after a new water pump. ...

Just picked my Blazer up after a new water pump. While underneath trying to locate the cause of loose steering, I realized one of my boots popped off and I too have cranked the T-bars 1.5". Thanks...
04-21-2011, 06:33 PM
Replies: 1
Views: 3,156
Posted By Mark_D

Update: It seems like a new radiator cap did fix...

Update: It seems like a new radiator cap did fix it after all...seems to hold pressure today. I didn't drive too far on it though. I will update again after I get more miles with it...
04-20-2011, 06:46 PM
Replies: 1
Views: 3,156
Posted By Mark_D

No pressure in cooling system, normal engine temp

Hello,
I hope somebody can point out a cause for these symptoms. I'm out of ideas, except maybe that are is air in the cooling system. Read on...

For some time (since even before changing the...
03-02-2011, 06:36 AM
Replies: 18
Views: 5,857
Posted By Mark_D

rob44 - The only downfall I can think of for...

rob44 -
The only downfall I can think of for waiting a week to do the t-stat is that your gas mileage is going to come down. My truck is usually around 17.9-18 mpg on average but with the broken...
02-09-2011, 06:56 AM
Replies: 18
Views: 5,857
Posted By Mark_D

Yes, it is a 195 degree t-stat from Napa. Good...

Yes, it is a 195 degree t-stat from Napa. Good luck!

I was trying to finish before dark but had to reconnect everything and go to the hardware store for a deeper 13mm socket in order to remove...
02-08-2011, 06:37 PM
Replies: 18
Views: 5,857
Posted By Mark_D

New thermostat fixed me right up. Running at a...

New thermostat fixed me right up. Running at a normal 195-200 degrees.

Hope it helps you too! Let us know
02-08-2011, 05:59 AM
Replies: 18
Views: 5,857
Posted By Mark_D

das, I searched for burping techniques and tried...

das, I searched for burping techniques and tried to do it last night but due to rain and a muddy driveway could only get the front passenger tire 4inches off the ground. I think the ramp would...
02-07-2011, 06:14 PM
Replies: 18
Views: 5,857
Posted By Mark_D

Looks like you're right...the anti-freeze helps...

Looks like you're right...the anti-freeze helps against both freezing and boiling, though I do still maintain that water cools more effectively [better specific heat]. Haha thanks for the...
02-07-2011, 05:40 PM
Replies: 18
Views: 5,857
Posted By Mark_D

Hey das96blazer, I've got the same thing going...

Hey das96blazer, I've got the same thing going on...

I'll share my situation and information and hopefully someone will be able to shed light on this.

Mine is '98 4-door and runs around 145...
12-14-2010, 08:03 PM
Replies: 2
Views: 555
Posted By Mark_D

Prob not the case unless you noticed your temp...

Prob not the case unless you noticed your temp needle being high while driving in the past, but I think driving for a long time with the engine really hot could cause it to seize when it cools down. ...
Forum: Detailing
12-14-2010, 07:59 PM
Replies: 23
Views: 2,561
Posted By Mark_D

Thanks for the tips, my paint looks terrible...

Thanks for the tips, my paint looks terrible right now. That'll be the first thing I do in the spring!
Showing results 1 to 50 of 115
 


 
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