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1988 GL Wagon 4WD Issues
Posted 14 February 2007 - 06:13 PM
I am a newbie, so if this topic has been discussed elsewhere, I'd appreciate it if you could point me in the right direction. I did some browsing but didn't find anything.
Anyhow, I have an '88 GL with 174k miles. It is running fine now, in 2WD. The snow is piling up and I want to be able to use 4WD - HI. I have tried to put it into 4WD mode with the car on a flat surface, engine running, in neutral, stopped. (Should I be using the clutch?) The dash acknowledges the change and shows me it is in 4WD. However, once I start moving, I hear all sorts of bad noises and feel some resistance driving. This was not encouraging, so I put the car back into 2WD. It was difficult to get it back into 2WD, and required me to put it into 4, then 2, and back a few times.
I got the car used, and I'm assuming 4WD was just not used for a long time, and that the parts are not lubricated, or something like this. Is this a common problem? Should I just stay in 2WD forever? If I run it in 4 for a mile or so will this go away (I'm a bit afraid to try this)? What should I do?
As a note, the transmission fluid was checked recently and was clean and full. Is there a separate fluid I should be checking?
Posted 14 February 2007 - 07:15 PM
Posted 14 February 2007 - 07:28 PM
the same inflation psi
preferably the same manufact.
Have you checked this?
Posted 14 February 2007 - 10:05 PM
Make sure all the tires are the same, and don't put it in 4wd on pavement. If it gets stuck in 4wd (usually because I have to pull out onto a paved road while turning, but am turning from an icy road that I need it to be in 4 wheel drive in order to pull out), what I usually do is get my right wheels on an icy or gravel patch along the road while I'm coasting and pulse the brakes hard enough to momentarily skid one wheel while pushing the lever down. Usually goes right back into 2wd. If you take tight turns on pavement in 4wd, it can be a bear to get back in 2wd, and that's really not good for the drivetrain either.
I'd also look underneath and make sure everything looks okay - just to be sure. Usually you can feel the binding if in 4wd on pavement, but I've never heard noises.
Posted 14 February 2007 - 10:37 PM
Also, it should never be used on dry pavement. Will cause binding and bad things.
Posted 14 February 2007 - 10:54 PM
Posted 15 February 2007 - 03:37 PM
I'm curious why 4WD isn't for use all the time (e.g. on dry surfaces)? Luckily it's snowing like crazy here in Rochester, so it will be a great time to try all of your recommendations. I'll be sure to check the tires for their model consistency and pressure.
Let's hope I can get it back in 2-wheel afterwards!
Posted 15 February 2007 - 03:52 PM
4WD + dry pavement is similar to + =
Posted 15 February 2007 - 03:56 PM
Front set of wheels are locked in the same rotational
speed (angular velocity) as the rear.
Since when you go around a turn there is a difference in the
track the front and rear take, some slippage has to occur to prevent the binding of the center drive unit.
If it will not come out of 4wd, back the car up about twenty feet
or spin the wheels (after shifting to 2wd) on a very snowy section
Posted 23 February 2007 - 06:29 PM
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