Problem started with a check engine light, Code p0745 and an intermittent hard shift in 1st and second gear.
You are looking at the pressure control solenoid inside the transmission. One wire is the control wire and the other 1 inch wire, going to an eyelet, is the ground. That crimp had failed over time and started causing an intermittent hard shift from maxed out line pressure. We were able to see a perfect looking control signal on our scope even during the failure but found the current would drop to zero. After pulling the pan and inspecting we found we could grab the wire and lightly pull it right out of its crimp. A little solder and a re-crimp and all is well. Suspect the crimp was never tight enough and over time the arcing eroded away enough wire until it completely failed. This is similar to a spark plug electrode wearing away and at some point causing a misfire.
At Nelsons Automotive of Pewaukee, we specialize on hard to fix Japanese car repairs just like this one.
I have a 2007 Nissan Altima with fault PO746 pressure control solenoid stuff off. It will not shift gears likes its stuck in neutral and engine vibrates heavily when I come to a complete stop.
Is the po745 code and the po840 code connected to each other
Hello. So I have an 05 altima 3.5l with 130k miles That was driving BEAUTIFULLY until one day I hit a bump hard in the city then the car stalled. Took it to autozone and code p0340 came up. Replaced the bank 1 and bank 2 cam sensors with cheap chinese sensors (I know) and then had the same problem. Took it to a shitty mechanic, first tried to tell me the tranny was shot then advised I replace sensors with OEM NISSAN. I bought new genuine oem nissan sensors (bank 1 bank 2 and crankshaft) and had them all installed.. Now mechanic said there was a code for transmission speed sensor. Bought an oem Transmission Speed sensor, had him replace it and said he now thinks transmission is shot because car has little acceleration in drive and clunks in reverse.
This problem happened while I had the p0340 code and would sometimes go away after resetting the negative terminal, then reappear, which leads me to believe the transmission is not bad after all. Im pretty sure the car not accelerating with enough power or going over 2k RPMs is attributed to it being in limp mode, but what the hell do I know?
Any advice?
My 2005 Nissan Altima SE automatic has a hard first shift. The Error codes I got were P0011 Intake Valve Timing control for the Camshaft Position timing was advanced beyond limits and P0420 for the Catalyst System Efficiency Below Threshold?? Any ideas …
i have nissan altima 2011, there is no check engine but sometimes transmission jerks. what the problem ? could you explain me ?
my car nissan altima automatic 2010 its have a problem not shift the gear its running in first gear only the code comes p1778 step motor can any one help me
I have nissan altima 2005 gear not shifting only reverse and gear number are working, what will be the problem?
I was wondering where the location of the solenoid is. I’ve been looking around on line and can’t really get a clear pic to figure it out
I have a 2000 nisssan Altima code p0705, it means neutral switch failure, it has been changed twice, and it still does not work the od, this happens some times not always, what other posibility could be
P0705 indicates the Transmission Control Module does not receive the correct voltage signal from the switch based on the gear position. The technician diagnosing your problem will need to verify what the TCM is seeing with a factory compatible scan tool and then test backwards from there. It sounds like the person diagnosing your problem is using the “shot gun” approach to diagnosis by assuming the code tells you what part to throw at it. This technique can become expensive and if its tested by an experienced diagnosis technician the problem should be fairly straight forward to repair. A $90.00 part replaced twice plus labor and its still not known whats wrong is a very costly diagnosis fee. With our diagnostic charge, our shop would guarantee the diagnostic result is accurate by guaranteeing you the part we install will repair the vehicle.