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truck will not start after being driven
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Tom Greenleaf
Ultimate Carjunky
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Aug 6, 2008, 8:18 PM
Post #26 of 41
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Re: Re:94 Chev Z71 truck - amps drain
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I'm still confused that the radio doesn't work with this fuse out. Perhaps it's the radio drawing the excess power?? Is it OE or a replacement? Plain OE radios don't draw too much IMO but some aftermarket ones are powerful as all get out and may have tapped into wiring that can't handle it and the load might be normal for that radio! Have you tried with just shutting the radio off and putting fuse back it - worth a try. I'm guessing as best I can with no solid plan of attack except trial and error for now,
T
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cowboy71584
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Aug 7, 2008, 5:56 AM
Post #27 of 41
(10049 views)
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Re: Re:94 Chev Z71 truck - amps drain
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Hey there Tom
I unpluged raido and the test Light stays on tell the fues is pulled I went a head and ran a hot wire for the radios momery to the Batt and just let the fues out but were should I look for the problem to be and My Alt was at 130 is that a ok temp
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Aug 7, 2008, 6:38 AM
Post #28 of 41
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Re: Re:94 Chev Z71 truck - amps drain
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130 temp is fine. Remember that with door open the test light would light. I'm confused as to how there's a drain that isn't apparently leaving something on that's noticed or blowing the fuse!
Of interest: My own truck (dash stuff could be different) has the switch for interior lights on side of dash - little plastic push rod extends when door open. Behind that parts are moving unseen with live wires. Perhaps a trouble spot?? My button sometimes won't light up courtesty lights unless it push and release that silly thing - just a though as it might be a trouble spot new to me.
Thinking out loud here: What else is empowered by that fuse? Glove box lights? Hood light? Does this have rear doors and lights? Cargo light? Rear view mirror have anything in it electrical? Also - warning tone (buzzer) for headlights left on, key still in ignition - things like that may be on the circuit. If something found I'd sooner unplug unnessary items than mess with wiring. Just a habit of mine when I get a new(always used) vehicle is to remove all bulbs from trunk, glovebox, hood lights. I also have a habit of leaving trunk open while in garage as I'm always in it restocking "road call" items, charging a portable jumper box etc.,
T
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cowboy71584
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Aug 7, 2008, 6:42 AM
Post #29 of 41
(10042 views)
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Re: Re:94 Chev Z71 truck - amps drain
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Hey there Tom
The CSTY Fues seems to only controling the inside lites and the cargo lites in the bed of the truck by passed it for the Radio but everthing is working but the inside lites and the cargo lite i am not sure if it controls the bruzzers or not because they have never work sence I have had the truck and I have had it going on 6 years now
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Aug 7, 2008, 9:29 AM
Post #30 of 41
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Re: Re:94 Chev Z71 truck - amps drain
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I am not sure if it controls the bruzzers or not because they have never work sence I have had the truck and I have had it going on 6 years now
VOILA!
There's the clue! Find that buzzer/tone thing and I bet you have the culprit. That noise maker involves ..... knowing the key is in ignition, and lights (headlights) on and just by default must sense the interior lights on from door open which I think adds a ground to constant power available and manually turning on interior lights grounds at the headlight switch I think. I'm playing with partial knowledge which is dangerous!
Tone thing by itself probably draws little current. It might draw lots without making noise without drawing so much as to blow a fuse.
It's A or B in an older vehicle. Do you want to hack around the problem or dig into the OE way all should work and fix it? Problem area seem to occur mostly when something aftermarket was done. Alarms, radios, remote starters, trailer wiring - any area you might see aftermarket (hardware store) wiring splicing, taps etc., is trouble later.
I forgot already - does this have a keychain remote for locks that might also put on interior lights when just unlocked? If so let me know. I've already been there and lost hair with the 96 Suburban I mentioned over that garbage which after "All the King's Horses and All the King's Men" couldn't find a strange behavior, mystery dead battery just periodically which I swear caused an alternator problem later as at location of that car couldn't charge battery except for leaving my donor vehicle hooked up an running both vehicles as to not strain one alt too much and take breaks but it still worked them both hard--- talk about HOT alternators!
So you have your clue(s) and the solution is bypass or find the flaw,
T
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cowboy71584
User
Aug 7, 2008, 7:57 PM
Post #31 of 41
(10022 views)
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Re: Re:94 Chev Z71 truck - amps drain
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Hey there Tom
Were would the buzzer be at nad is the a way to get pics an wire diegrams to show me what to look for and were to look for it at and the only after market things i have is a radio and trialer lights but they have been in there for months now and no I do not have a keyless key thing it may have had it when the truck was new but when I got it there was not one
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Aug 7, 2008, 8:23 PM
Post #32 of 41
(10018 views)
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Re: Re:94 Chev Z71 truck - amps drain
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http://www.autozone.com/...eId=0900c1528008f3ce
Guess what? Wiring diags are free at that site but it's a maze just to surf thru. It's pouring here right now or I'd go look at where the chime/buzzer thingy is in my own! Hard to find them sometimes even when they are chiming away! It seems like they are wired quite alike for both 94 and 97 model years as it turns out.
I just know it's up under dash over pedals somewhere but don't know just what it looks like or wire colors going to it to help. Diags might help with that. If you don't find it, hit back and I'll go look before Noah comes with the ark around here
T
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cowboy71584
User
Aug 7, 2008, 8:54 PM
Post #33 of 41
(10014 views)
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Re: Re:94 Chev Z71 truck - amps drain
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Hey there
What site can I get the diograms from and if you can look at yours sometime an let me know were yours are and size and color that would be great I know you said its raining on you so if you can tommorrow and then e-mail me and let me know I would be thankfull I am not doing to try any of this tell tommorrow so its ok to e-mail what you find out then
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Aug 8, 2008, 4:56 AM
Post #34 of 41
(10012 views)
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Re: Re:94 Chev Z71 truck - amps drain
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WIRING DIAGRAMS GM Full-Size Trucks 1988-1998 Repair Information Previous|NextEngine ElectricalDriveability&emissi...BrakesSuspension&steeringChassis ElectricalRoutine MaintenanceEngine&engine Overh...Body&trimDrive TrainFuel Systems Chassis Electrical
See Figures 1 through 29 -
 Fig. 1: Index of Wiring Diagrams -
 Fig. 2: Sample Diagram: How to Read and Interpret Wiring Diagrams -
 Fig. 3: Wiring Diagram Symbols -
 Fig. 4: 1988-98 GM-C/K Series Wiring Schematic -
 Fig. 5: 1988-98 GM-C/K Series Wiring Schematic -
 Fig. 6: 1988-90 GM-R/V Series Wiring Schematic -
 Fig. 7: 1988-90 GM-R/V Series Wiring Schematic -
 Fig. 8: 1991 GM-R/V Series Wiring Schematic -
 Fig. 9: 1991 GM-R/V Series Wiring Schematic -
 Fig. 10: 1991-98 GM Truck Wiring Schematic -
 Fig. 11: 1994 Pick-Up/Sierra 4.3L and 7.4L W/MT Engine Schematic -
 Fig. 12: 1994 GM Truck 5.0L and 5.7L w/MT Engine Schematic -
 Fig. 13: 1994 Pick-Up/Sierra 6.5L Turbo Diesel w/MT Engine Schematic -
 Fig. 14: 1994 GM Truck 4.3L, 5.0L, 5.7L and 7.4L w/AT Engine Schematic -
 Fig. 15: 1994 Pick-Up/Sierra 6.5L Turbo Diesel w/AT Engine Schematic -
 Fig. 16: 1995 Pick-Up/Sierra 4.3L and 7.4L w/MT Engine Schematic -
 Fig. 17: 1995 GM Truck 5.0L and 5.7L w/MT Engine Schematic -
 Fig. 18: 1995 Pick-Up/Sierra 6.5L Diesel/Turbo Diesel w/MT Engine Schematic -
 Fig. 19: 1995 GM Truck 4.3L, 5.0L, 5.7L, and 7.4L w/AT Engine Schematic -
 Fig. 20: 1995 Pick-Up/Sierra 6.5L Turbo Diesel w/AT Engine Schematic -
 Fig. 21: 1996-98 Pick-Up/Sierra 4.3L w/AT Engine Schematic -
 Fig. 22: 1996-98 GM Truck 5.0L and 5.7L Engine Schematic -
 Fig. 23: 1996-98 Pick-Up/Sierra/Suburban 7.4L W/MT Engine Schematic -
 Fig. 24: 1996-98 Pick-Up/Sierra/Yukon/Tahoe 6.5L Turbo Diesel Engine Schematic -
 Fig. 25: 1994 GM Truck Chassis Schematic -
 Fig. 26: 1994 GM Truck Chassis Schematic -
 Fig. 27: 1995-98 GM Truck Chassis Schematic -
 Fig. 28: 1995-98 GM Truck Chassis Schematic -
 Fig. 29: 1994-98 GM Truck Chassis Schematic
***********************
THOSE ARE THE DIAGRAMS AT THE LINK POSTED JUST ABOVE YOUR LAST. FROM THE ORIGINAL FILE AT THAT LINK THEY WILL EXPAND FOR YOU PAGE BY PAGE IF YOU WISH. I'LL STILL GO PLAIN LOOK AT WHAT I CAN FIND LOOKING RIGHT AT MINE WHICH SHOULD BE SIMILAR OR EXACTLY WHAT YOURS SHOULD BE,
T
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Aug 8, 2008, 7:01 AM
Post #35 of 41
(10006 views)
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Re: Re:94 Chev Z71 truck - amps drain
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Found the box on my 97 C/K 2500.
It's a ~2.5x2.5 x 1" box that just plugs into the fuse block inside firewall near park brake pedal. Mine sings when lights are on and key out or door open with engine off and key in.
If that or wiring there or nearby is a drain then it should be warm when draining. That box may be missing in your truck or all different set up. It may blow fuses to put one back in or not stop making the tone/chime sound. I'm not taking it out in mine but behind those fuse blocks to the firewall is nomans land and there are unfuses wires that connect there packed in grease usually to last forever when separated and I have found troubles in that location on GM truck/vans in the 80s model years if that helps. Those back when were not draining but were not making a connection such that entire groups of items didn't get power to fuse at all.
Wires and connections that show evidence of heat should be present in this case. The power the alt is losing is going somewhere and making heat in doing so......
T
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cowboy71584
User
Aug 18, 2008, 6:16 PM
Post #36 of 41
(9991 views)
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Re: Re:94 Chev Z71 truck - amps drain
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Hey there Tom
I found wires that have been cut, tape, and burt and I have fix the wires with new wire ATL when has been working fine and no problems BUT when I put the csty fues back in we have the same problems over again ATl getting hot but I haveing been working on my four wheel drive and I have found out that the Factory wireing to the front hub locking thing has been cut taped and burned also so I put in a manuel 4x4 system 4x4 works great but the 4x4 light on the floor will not come on when the truck is 4x4 and the Kit I got for the 4x4 would work the light but mine is not working so I unpluged the wires from the Tranfer case to the front locking thing and rewired it still no lite but know my Trans will not shift and when you put it in to drive the truck acts like the break is on and does not want to move you really have to gice it some gas for it to move I put in the 4x4 system on saturday no problems besides the lite drive fine everything was fine on Sunday still the same everything is fine this morning I drive to town everything is fine but this afternoon is when the Trans started acting up were it would not shift and acted like the break was on when you went to drive off what could be the problem and does the transfer cases wireing have anything to do with the trans?
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Aug 18, 2008, 11:37 PM
Post #37 of 41
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Re: Re:94 Chev Z71 truck - amps drain
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4X4 note:
If engaged this type 4wd will not "differentiate" and with wheel turned with adequate traction to surface will feel like brakes are locked on!
Wiring issues: Best to strip back splices and solder with shrink wrap over area. I'll even go over all that with the "brush in cap" liquid electrical tape especially for wires exposed to the elements,
T
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cowboy71584
User
Aug 19, 2008, 7:24 AM
Post #38 of 41
(9980 views)
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Re: Re:94 Chev Z71 truck - amps drain
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Hey there Tom
The breaks are not on I looked into that with the truck off the ground all 4 tires move freely but when its on the ground it acts like there is something in the way and does not want to roll but would me massing with the wires on the transfer case make may trans not shift and not want to roll freely in the drive gear?? also what is causeing my 4x4 lite not to work when the truck is in 4 wheel drive??
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Aug 19, 2008, 8:39 AM
Post #39 of 41
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Re: Re:94 Chev Z71 truck - amps drain
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That feeling when on the ground with wheel turned fully is near exactly like the brakes are stuck on and would be normal - only when wheels turned sharp. If so the 4x4 may be kicking in and out with this wiring thing going on.
I can't explain the light not being on. the diagrams are above if you want to follow the routing. No doubt a door jam type indicator switch at the actuator. Have owned two of the shifter on the floor 4x4 GMs and Momma has the pushbutton on dash but same drive type.
The floor shift types are not engaged until lit on mine and when cold it can be a wait. Nothing is fautly with wiring on that though.
The bulb for the indicator is just like a sidemarker common #194?? bulb and could blow which messes up figuring things out.
With your wiring in question I really thing you have to do the goose chase
T
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cowboy71584
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Aug 19, 2008, 9:00 AM
Post #40 of 41
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Re: Re:94 Chev Z71 truck - amps drain
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Hey there Tom
I will look into that but if the transfer case is unpluged would that cause my trans to mass up
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Tom Greenleaf
Ultimate Carjunky
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Aug 19, 2008, 9:13 AM
Post #41 of 41
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Re: Re:94 Chev Z71 truck - amps drain
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Probably not!
T
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