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ELE PROBLEM AND DRIVEING PROBLEM
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cowboy71584
User
Sep 27, 2008, 11:22 PM
Post #1 of 3
(1854 views)
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ELE PROBLEM AND DRIVEING PROBLEM
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Hey Tom
I have a big problem I have a 94 chevy Z71 I have never had transmission problems befor but I replace the whole wires harness the 2 shift selanodes and the computer behind the cove box and my trasmission still will not shift on it own and you have to put it in low gear 1st to take off and I had it hook to a computer and it told me no power to trans or something like that and I do not know what to do and do not have the 80 dollors a hour for someone to look at it what do you think it could be?? ALSO
I have a 96 ford f250 4x4 and the problem I have with it is when you drive down the road and get to about 45 or 50 the truck starts jumping and shakeing so bad you have to hit the breaks what can that be thanks for your time
Justin
P.S I am still haveing problems with the 94 chevy over chargeing I have went thoruth 2 alts in less then a month any ideas
the 94 has a 350 5.7 with 300000 miles and the 96 has a 7.3 turbo desial with 250000 miles
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Sep 28, 2008, 4:58 AM
Post #2 of 3
(1850 views)
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Re: ELE PROBLEM AND DRIVEING PROBLEM
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Justin - it's Kitty here - Tom is just a stage name!
My worry is this alternator overcharging is now the source cause of problems. All the junk (puter, sensors etc) in the Chev are for the normal ranges of a 12v system and if it's exposed to much higher than perhaps even 17v it's about sure wierd things will happen. The regulator for that has to be straightened out and I can think of a trigger outside of it that will make it default to overcharging. It's hard to believe but possible to have two defective regulators??!!
From that fix then suspect anything electrical for the trans. It's been mentioned that if you need diagnostics for trans that if you go thru Autozone they will do a courtesy check for you thru AAMCO. If that's available in your area I'd take them up on that.
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96 F-250 4x4 - Wobble at moderate speed?
Certains everything about the steering, suspension, brakes, and tire(s) is in the cards for that. I'll see if I can find the style of wheel bearing this uses for fronts as I've had those if the "inner/outer" separate type feel great, no particular anything wrong until you look right at them. Found one of those types behave well on just an outer and go wild at some speed after some time similar to your observation so far.
Hey - with all those miles, when do you have time for the computer?
Tom and Kitty
(This post was edited by Tom Greenleaf on Sep 28, 2008, 5:01 AM)
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bobscoug
New User
Oct 2, 2008, 6:14 PM
Post #3 of 3
(1826 views)
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Re: ELE PROBLEM AND DRIVEING PROBLEM
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Your problem is very common. First, check and see if one or more guages are not reading right. The problem that I have fixed many time is the ignition switch,the electrical part. The reason that the ignition switch is to blame is because over time the contacts inside the switch become corroded. Call the dealer and give them your VIN #. They can look it up and I'll bet they have it in stock. Also, scan the computer somewhere. See if you get multiple codes for solenoid circuit failures. This will also help you diagnose the problem. Very rarely do you get more than one circuit code at a time. Good luck.
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