Last post on Sep 16, 2012 at 9:36 PM
You are in the GMC Safari & Chevy Astro
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GMC Safari, Chevrolet Astro, GMC Safari Cargo, Van
#153 of 170 1999 Astro Blown TRANS Fuse w Trouble codes shift prob
Mar 10, 2010 (9:33 pm)
Had the transmission in our Chevy Astro rebuilt a month ago and it drove great! Two weeks later we go to start it and the lights on dash where trans indicator not viewable and the trans feels like it is in second gear upon throttle instead of first gear. Take it back to the trans repair specialist and they had it two days. Trouble code stored and read by their comp is a 'PO760 Shift Solenoid C'. Called us to pick it up and they said it was working temp and we needed to replace the ignition and they were 75% sure it was that, but could not say positive though. We had NO prob with ignition before. It is tight and key goes in smoothly. No electrical or dash light problemss or any difficulties with ignition or starting van. They say it is causing TRANS fuse to blow. Aprehenious, we say we will wait for $250 repair to replace ignition switch and do some checking. Two weeks go by and no problem but then fuse blows again and the trans acts like it is in second again. Wiring harness in trans was replaced when rebuilt(according to trans repair specialist). Ran our own SCAN tool and came up with PO 740, PO753, PO 758, P1860 stored codes today. We think it is indeed a bad wire to trans or a bad wiring harness and the problem is not in the column or not directly related to the ingnition. We have the GMC pro service manuals and the wiring diagram doesn't show the TRANS fuse connected to the ignition but straight back to the trans harness. Please give this very capable DIYer confirmation or retraction to which direction should be taken. Are we right or is the trans place right? If we are right we would like the trans place to put in new wiring harness or to do thourough inspection of the trans wiring rto find the short.
#154 of 170 Re: 96 astro trans shifts hard [martino501]
Mar 21, 2010 (4:21 pm)
Did you determine what was the problem?
#155 of 170 Re: shifting problems in 04 astro 2wd [1998lincoln]
Mar 21, 2010 (4:34 pm)
How do you know for sure if it is failing? Would a code be stored for it?
#156 of 170 2000 gmc safari transmission leak
Mar 29, 2010 (4:48 pm)
i have recently changed my trans. and just drove it 300 miles 2 day ago everything went smooth then today drove home it seemed ok but when i popped my hood i had tranni fluid all over place took it to car wash came home and cant get it to leak it still has plenty of fluid in it but wont leak any ideas
#157 of 170 Re: 2000 gmc safari transmission leak [iceguy]
Mar 29, 2010 (5:24 pm)
Two things to would check, did you over fill the trans, if not, check the lines to raditor, might be stopped up !
#158 of 170 Re: 2000 gmc safari transmission leak [1998lincoln]
Mar 29, 2010 (7:33 pm)
lines to the radiator are to hot to touch, could this be a result of a plugged line , if so how would you go about unplugging the line
#160 of 170 2002 GMC Safari Brake/Stop Light and Turn Signal Both Blow Fuses
Jun 14, 2010 (4:45 pm)
I have a 2002 GMC Safari van. My wife went outside to try to start but it would not start. She tried a little while later and still would not start. I tried a few hours later and she said she pushes down on the gas to start so I thought that was the issue since it is electronic fuel injection.
When I started it up the turn signals would not work and I found that fuses 1 and 16 were both blown. I researched the issue and thought it was the multi-function switch so I bought a new one off of eBay from a reputable guy who had old dealer stock. It looked brand new. I installed after a very difficult process and when I pressed on the brake pedal it blew the fuse again. Putting the turn signals on also blows the other #16 fuse after blinking on and off for 3-4 iterations.
I removed all the dual filament bulbs and the top brake light and pressed on the brake pedal and that also caused the #1 fuse to blow.
I removed the brake signal switch and opened it up gently and made sure the front two contacts would be coming open prior to the last contact touching. Everything looked good in there.
The van does have a connection for trailer lights and brake controller. I reviewed those and they are all clean.
I removed the top brake light and everything looks clean there too. The resistors all look good.
I opened the sliding door just in case something was shorted in in there as well but that had no effect.
Any suggestions on how to test the actual connector sockets into which the bulbs reside?
I really thought it would be the multi-function switch but that was not it. Please ask anyone you know who may be able to help on this one as have a $4,000 boat anchor right now.
#161 of 170 96 Astro Van Transmission
Aug 24, 2010 (2:06 pm)
The transmission went out in my 96 Astro Van (reverse and 2nd gear). It had about 260,000 miles on it. I picked up one at a junkyard today (from the same year van) but had a quick question. The guys I had to deal with were a real PAIN, and were pulling all kinds of CRUD since I'm a woman. They said I'd have to have the transmission reprogrammed/reset, and if I didn't it wouldn't work right. Now, I've messed with several transmissions, but all older stuff...like 67 & 70 Mustangs and a 68 Cougar---never any of this "new stuff"...... Were they telling the truth, or just trying to pull one of my already long legs?? Would someone please let me know. I can't seem to find anything about it online, but just wanted to double check.
#162 of 170 Re: 96 Astro Van Transmission [carmen72]
Aug 24, 2010 (3:27 pm)
just pulling your leg; swap it and go