1990 Gmc S15 Truck

3219 Views 3 Replies 3 Participants Last post by emosun, Jan 25, 2007

emosun

Discussion Starter · Jan 15, 2007 (Edited)

i have a 1990 gmc s15 truck , extended cab, short bed, 4.3 liter v6, 4x4. i have a couple problems. first is the tranny. in order to go into park i have to push up on the gear shifter real hard until it clicks. then its in park . if i do it normal by just moving it into park without pushing hard it will be in a neutral state. as in it can roll back and forth. it doesnt bother me to do this but i just wanna know why and if it is serious. truck runs and drives fine like this for the past two years. all the other gears work normal.

also the other problem is my ebrake light is always on. no my ebrake isnt always on. just the stupid light. i thought about takeing the bulb out. that does bother me. is the butten for the light on the ebrake pedal stuck on or somthing?

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LostInTexas

· #2 · Jan 16, 2007 (Edited)

Brake warning lamp

Regarding the brake warning lamp, try disconnecting the connector at the park brake switch. If the lamp goes off, it is a switch problem. I don't recall whether or not this vehicle uses the lamp to warn of low brake fluid level, but it's easy enough to check. If the fluid level is ok, try disconnecting the switch to isolate the problem. A third possibility, and probably the most likely, is an ABS problem, which requires a lot more checking. This problem you're best off leaving to the pro's. You might try disconnecting the brake module and then reconnecting, or just disconnect and reconnect the battery. If the lamp goes off, that's where your problem is. If it stays off, even better.

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Volt-Schwibe

· #3 · Jan 24, 2007 (Edited)

emosun said:
in order to go into park i have to push up on the gear shifter real hard until it clicks. then its in park . if i do it normal by just moving it into park without pushing hard it will be in a neutral state. as in it can roll back and forth. it doesnt bother me to do this but i just wanna know why and if it is serious.

ok, this makes me think that the shifter cable (or linkage depending on the setup) is out of adjustment. when you put it in 1st, does it seem to be a little ways from the other end?

sometimes they just get misaligned.

there's an adjustment screw usually at each end of the cable type, although, you want to make adjustments to it very slowly, checking it each time.

with the linkage type it's a little more complex.

emosun said:
also the other problem is my ebrake light is always on. no my ebrake isnt always on. just the stupid light. i thought about takeing the bulb out. that does bother me. is the butten for the light on the ebrake pedal stuck on or somthing?

now with this, i want to mention, that light also pays attention to the fluid level in your brake resivior too.

some of them will come on while the car is running, if there is a loss of vaccuum at the brake booster.

if it's not the switch itself, on the e-brake pedal/arm then it might be low fluid.

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emosun

Discussion Starter · #4 · Jan 25, 2007

ya another friend of mine said it might be the cable. ill see if i can adjust it. as far as the brakes go, my brakes do kinda suck so maybe ill take it to a place to have em looked at.

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