Thread: DTCS P0700 and P0741

My car just threw these codes today P0700 and P0741 both are tranny codes anyone have these codes come up before? If so what came of it? Also anyone with any information would be helpful.

Originally Posted by zebulun

My car just threw these codes today P0700 and P0741 both are tranny codes anyone have these codes come up before? If so what came of it? Also anyone with any information would be helpful.

IIRC the PO741 is the trans speed sensor, no? I had that code on my 01 Aurora. It would set off the check engine light and the car would slam into 3rd gear. However, when I cleared that code the trans would run fine for two or three weeks until it threw the code again. I think it was the sensor's wiring harness because once I uplugged it and then plugged it back in and I got a few months without the problem. I finally solved the problem by selling it. Do you have any problems with the trans shifting badly?

Well it was being sluggish at times then alittle shakey before going into gear then at times it would run just fine then at other times it would just be sluggish then kind of slam into the next gear.

Well when I took the car to the dealer on monday they told me that it was a torque converter issue and that i would take a day and a half to fix.

But then tuesday they called me and told me that it appeared that someone had worked on the car before and asked if i was the one that had the worked performed but i have only had the car for two months and aside from an oil change and having gas put in it there has been nothing done to it. well they asked me where i bought it from trying to track down who had the work performed and what exactly had been done because something wasn't done correctly.

Wednesday no news.

Thursday I called them to ask how my car was and they asked me what car it was and they asked me if it was the one they had to order the transmission for and at this point i was under the impression it was just the t.c. malfuctioning. then they told me that they had a transmission on order for it and that it would be a bit till it arrived then a day to put it in. Tranny should be in monday. Thank god for the warantee is all i can say!

Friday they called and said that i should be prepared to turn the rental car in because GM wouldn't pay them back for it for more than 5 days of rental for one service job. and they they may be able to get seven days out of it because they had to order the tranny.

As it stands right now i'm not giving back the rental till my car is fixed .

that sucks man how many miles on the car?

Around 34K I belive... I havn't seen it in a week or drove it in two weeks. BTW a rep. from gm called me and said gm would extend my rental... just suck I didn't get anything better than a Slo-balt. Can't wait till I get my ride back.

your trans died at 34k? what you should do when you get it back is get a big trans cooler and put that in. alot of people do and it helps safe our crappy trans.

Got any suggestions I really don't want to have to have another tranny-plant till I am ready to beef it up some.

Fixed! Got it back today she has 37K mi. They said that when they opened up the tranny that it was full of metal debris. They replaced the whole thing. So glad the warantee covered it or else I would have had a 4000 dollar bill.

"Well it was being sluggish at times then a little shakey before going into gear then at times it would run just fine then at other times it would just be sluggish then kind of slam into the next gear."
mine did the exact same thing but it wouldnt reproduce the problem at the dealership so they havnt done anything about it yet.

Well I hope you have better luck than I did. But my car runs so much better than it ever did. I'm so glad to have it back.

theres several different trans cooler u can get. im running a big hayden cooler that i got from Triple Edge Performance - Home Page. easy to install and only 50 bucks and some change.

it is the torque convertors that kill our trans. the metal pieces in the trans was from that. found what i have heard from the trans coolers is they arre cheap but not easy to install and are well worth it.

dude theyre easy as hell to install... by pass radiator. hook trans lines into cooler.. clamp them down.. mount cooler to front of radiator.. done!

I have never done it but a lot of people told me its like 6-8 hours to do

they are complete idiots then... it doesnt take that long to take the whole trans out the car... 30-45 minutes tops

so what exactly is this miracle worker everyone is talking about? I would do anything to help my car within reason.

Question what is the ideal running temps of our trans. And what is the average running temps?