94 chev automatic tranny troubles

lkaveman · 01-07-2007, 09:43 PM

i just bought a 94 s10 blazer 4.3 auto with 4wd have 2 problems gas in oil running rich i hope its fuel regulater has central port injection spendy other problem is in overdrive when shifting into 3rd gear its like going into neutral ,in regular drive 1st and 2nd is fine but wont shift into 3rd, reverse works good dosent seem to slip at all in 1 or 2 . Does it sound like my 3rd gear is toast needing new tranny or hopefully a modulator is it possible a vacuum leak could cause both fuel and tranny problem i hope i dont have remove tranny but maybe its time to learn to rebuid automatic thank you if you have any suggestions

03chevy · 01-08-2007, 07:31 AM

there is two sencers in the tranny when you remove the pan. i would change the fluid and filter and when you do you will see them. i have a friends truck i had to change because it wouldn't take a nother gear. they are very easy to remove and put back in.

01-07-2007, 09:43 PM	#1
lkaveman Junior Member Join Date: Jan 2007 Posts: 2	94 chev automatic tranny troubles i just bought a 94 s10 blazer 4.3 auto with 4wd have 2 problems gas in oil running rich i hope its fuel regulater has central port injection spendy other problem is in overdrive when shifting into 3rd gear its like going into neutral ,in regular drive 1st and 2nd is fine but wont shift into 3rd, reverse works good dosent seem to slip at all in 1 or 2 . Does it sound like my 3rd gear is toast needing new tranny or hopefully a modulator is it possible a vacuum leak could cause both fuel and tranny problem i hope i dont have remove tranny but maybe its time to learn to rebuid automatic thank you if you have any suggestions

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01-08-2007, 07:31 AM	#2
03chevy Senior Member Join Date: Dec 2006 Location: jax,fl Posts: 1,063	there is two sencers in the tranny when you remove the pan. i would change the fluid and filter and when you do you will see them. i have a friends truck i had to change because it wouldn't take a nother gear. they are very easy to remove and put back in.