Tranny Swap Problem!!! Need help ASAP
Tranny Swap Problem!!! Need help ASAP
Ok so here we go...I went and picked up this tranny that I found and it had 38k miles on it, so came back and swapped the tranny out, the process went very smooth just the hard part is getting the tranny back up to the motor, (anything like this is hard when you do it with regular jacks and in a apartment parking lot!) I also used the torque converter that came with the tranny, So we get everything bolted back up and wouldnt crank, so lastnight we looked at all the sensors and everything, we sanded down the ground because it was a little rusted, by this time its now 5:00am so we took it in for the night, so i wake up this morning and go back out there and i wanted to scan for codes to see if it was pulling one, I scanned it and got the P0335, which is Crankshaft Position Sensor A Circuit Malfunction, so i took the sensor out which is the sensor where the tranny and motor connect, i cleaned it off because it had dirt on the magnetic strip on the tip of it and placed it back in, took the starter out and put it back in, tried to crank and still the same thing, just turning over and turning over and no crank. Its getting gas because I can smell it and i checked all my fuses, sensor plugs, just about everything and now im sitting here like what do i do next...so i said maybe the Crankshaft sensor went bad so I went to Advanced and bought one ($92) came back just a few mintues ago , put it in and it did the exact same thing! Im just about on the verge of F it but I feel like its something very simple thats all..Orgers please help here!!!!
Dont crank it anymore. Pull the plugs, let it sit overnight, and try cranking it again tomorrow.
The CKPOS can cause cranking misfiring, aka it will just crank and not turn over. You may have flooded the cylinders with gas, and it has no way to escape. Pulling the plugs overnight will let the gas evaporate and let the plugs get 'un-soaked'.
The CKPOS can cause cranking misfiring, aka it will just crank and not turn over. You may have flooded the cylinders with gas, and it has no way to escape. Pulling the plugs overnight will let the gas evaporate and let the plugs get 'un-soaked'.
i was in on this swap...like he said it went pretty smoothly. we used all of the original sensors, except for the speed sensor i believe, but i dont think that has anything to do with it cranking? i may be wrong. they checked all the driveplate teeth and they all look good. its a nice steady crank, no skip or anything. were gonna check spark tomorrow.
i did overlook one thing, and i pray its not the culprit cuz imma be ticked off cuz i KNOW were supposed to do it but we just forgot i guess. we didnt sand down the mating surface between the engine and the tranny. so i hope thats not it...wouldnt a bad ground make it sound awkward during cranking though, like an unhealthy crank?
i did overlook one thing, and i pray its not the culprit cuz imma be ticked off cuz i KNOW were supposed to do it but we just forgot i guess. we didnt sand down the mating surface between the engine and the tranny. so i hope thats not it...wouldnt a bad ground make it sound awkward during cranking though, like an unhealthy crank?
Probably going to end up being something very simple. A buddy of mine and I pulled a 455 out of a Delta 88 and put it in my '77 Cutlass. Got everything bolted in, double checked all the connections, etc. Got in to crank it up and nothing. NOTHING. Turn the key and no sound at all. By then, it was getting late and I had to go to work (assistant manager at Jack in the Box) so nothing I could do then. All that damn work pulling two engines, bolting the 455 into mine and sort of bolting the old 350 into the Delta 88 (really didn't care that much about getting it running, only paid $550 for the whole car because I wanted the engine) and I didn't have squat to show for it.
Next morning, after working all night, I go through all the wiring again. Battery looks good, alternator looks good, distributor is properly connected, etc. I get under the car and right by the starter, I see a wire hanging down. The ground wire for the starter.
. Connected it and my car fired right up. Just missed it working in the near dark after a long day of turning wrenches.
The tranny/engine mating surface wouldn't cause a no start condition. Just go over all your wiring and connections top and bottom and hopefully it ends up being something you simply overlooked.
BTW, that 455 ran a lot better in my Cutlass than it did in the 1000 pound heavier Delta 88!
Next morning, after working all night, I go through all the wiring again. Battery looks good, alternator looks good, distributor is properly connected, etc. I get under the car and right by the starter, I see a wire hanging down. The ground wire for the starter.
. Connected it and my car fired right up. Just missed it working in the near dark after a long day of turning wrenches. The tranny/engine mating surface wouldn't cause a no start condition. Just go over all your wiring and connections top and bottom and hopefully it ends up being something you simply overlooked.
BTW, that 455 ran a lot better in my Cutlass than it did in the 1000 pound heavier Delta 88!
What happened to your old tranny anyway? Hopefully you will find the problem by now.
I went out and bought anothing CKPS but it did the same thing and it cant be that because i wasnt gettin a code from it....they dont just go out do they? It was working fine before the tranny swap.
bump...someone help this man out...im thinking and all im pulling up is there has to be a loose connection or something....but its crazy how on newer cars everything is connected, its harder than just spark fuel and timing like it is on a old Chevy SB, but let me get it straight, its cranking just not starting right? but it is turning over??
Ok so after two dayz work on Tee00Max car its running. I will let hem explain it but I had to get this out there "NEWBIE MOMENT". Mr. Tee00Max is trying to put his strut tower bar back on and loosen the top three bolts and his whole sturt and tire falls to the ground. He had the car on jacks. I tell you and this is an SENIOR MEMBER....
Ok so after two dayz work on Tee00Max car its running. I will let hem explain it but I had to get this out there "NEWBIE MOMENT". Mr. Tee00Max is trying to put his strut tower bar back on and loosen the top three bolts and his whole sturt and tire falls to the ground. He had the car on jacks. I tell you and this is an SENIOR MEMBER....
Ok so after two dayz work on Tee00Max car its running. I will let hem explain it but I had to get this out there "NEWBIE MOMENT". Mr. Tee00Max is trying to put his strut tower bar back on and loosen the top three bolts and his whole sturt and tire falls to the ground. He had the car on jacks. I tell you and this is an SENIOR MEMBER....
2000 maxima owner in the bahamas had stock tranny problem from i bought it used had problem with it taking to long to shift then develop a slipping problem long story short swaped it out with a used one. Now the car won't start the mechanic played around with the sensor between the engine and the transmission i think it's the crank sensor after about a hundred try got it start up took it 4 a spin trany shift out pretty well but with out the real maxima torque then it stop shifting brought it back to the mechanic they said the fluid lines might of been cross switched it but now the car won't started help do yall think it really is the crank sensor or bad ground or flywheel positioning forget tranny problem my concern is starting basically
yeah yeah i knew you couldnt wait to put this up here!! Lol yes I had my noob moment, I was just so damn happy my car was running I was rushing getting all the bolts back on!! Well after 2 days the car is running and shifting better than ever, we had to seperate the tranny and engine and sand the mating surface a little bit and when we put it back together, first crank, it crunk right up! Thanks to everyone that chimed in on this thread and thanks to nissanmax2001 and MaximaSpd85 for the help till 5am the first night and then tonight till 3am.
wait wait wait....so all you had to do was sand down the mating surface ??
how does that cause a no start?
cool, i kinda figured that but i ddnt know it was so obvious

on another note, if you took a grounding wire and bolted it from the engine side to the tranny side, wouldn't that also have worked?
i think i may have to try that, cuz i just finished puting in a light weight flywheel,new clucth and tranny.bolted every thing up turn da key and no start, i was thinking it was da crank sensor but i will def try sanding da mating cuz im saying it has to be sum real simple im missing.
i think i may have to try that, cuz i just finished puting in a light weight flywheel,new clucth and tranny.bolted every thing up turn da key and no start, i was thinking it was da crank sensor but i will def try sanding da mating cuz im saying it has to be sum real simple im missing.
let us know when its resolved
wow what a story! being that i personally swapped out a few trannie myself on my old VE, i never sanded down the mating surface between the engine and tranny and everything worked just fine.
could it be that the new VQ motors are grounded differently?
could it be that the new VQ motors are grounded differently?
help

NO LUCK!!!!! i ran a 2/0 cable from strater 17mm bolt to front engine block ground and a second 1/0 cable from body ground just below the battery tray to driver side tranny bellhousing 12mm bolt sanded and clean the from battery to body ground and the one from there to the engine block also the oem ground on the tranny notice the crank sensor has a tiny file down spot on the magnetic face wire look kind of crimp the ran to it (sub harness) it just crank sputer crank sputer



help

hey my car has an off set 3" bracket dnt know if it surpose to go in the back or front of the crank sensor check out my other sensor today the crank sensor(ref) engine side below the pully,I have an oil leak which has oil all over it and on the wires the biggest. Concern is that 3 days a go i saw a tranny bolt that was not tighten got it tighten now notice one missing on top of the tranny, notice it after taken out my starter (toast) after 2 much continued starting i also test the crank position sensor harness all good. (connection).
More problem !!!! on closer inspection there where two missing bolts and three slack ones and now it gets worst on doing a complete perimeter check for slack bolts notice there's a piece crack off the engine bellhousing about 2.5" in diameter its below the starter fire wall side dont think its close to a bolt hole and dont no if its the mechanic fault, i look into all of this due to the mechanic being busy and tell me to buy sensors ckps pos .after reading alot of threads on the forums, i got more insight than my mechanic wow kudos to every one here, decide to drop the tranny now to get it sanded and clean (tranny and engine bell housing) really want to know if the 2.5" hole is going to affect (1)starting (2) mobile driving (3) ground problem &(4) be an issue for debris and fluids.
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Sorry man, I'm at a loss for ideas here. Did the FSM give you any insight at all?

