Crank shaft position sensor fails twice in 1 month?!?!

deep1ca · Post by **deep1ca** » Fri Jan 02, 2009 3:21 am

.

EDIT: Solved the problem, needed new crankshaft position sensor, installed it, car ran fine for 3 weeks, today car stalled again and threw crankshaft position sensor error code. Car is now at the shop and is gonna be diagnosed to see if there is a problem in the circuit, computer, or if the sensor failed again.

2001 Automatic ... in canadian winter.

About a week ago when I was getting off the highway my car lost engine power, it rolled down from 110km/h to 70km/h and then the power kicked back in. After that everything was fine.

A few days later again when I was slowing down to take the exit on the highway the car lost engine power and rolled down from 110km/h to about 60km/h and power kicked back in.

Everything was fine but yesterday my car completely lost engine power at a red light. I tried restarting a few times with no luck at all. The car was cranking but it felt like it wasn't getting any fuel to ignite. I attempted starting it some more, it either wouldn't start or would start, sputter and fart and then shut back down. After couple minutes it successfully started. The next red light it stalled again, but thankfully this time it started right back up. The rest of the drive home sucked, it would stall every couple of minutes, sometimes restarting fine, and sometimes i'd have to wait a few minutes and try repeatedly.

This seems to happen once the engine has warmed up. When the engine is cold it runs fine.... but once warm, it happens every few minutes.

So the issue with my car is:
-Sometimes it will start to lose power and before shutting off it the power will kick back in
-Sometimes engine will lose power and stall, but restart without any issues
-Engine will stall, when restarting it will restart, sputter and fart for like 5-6 seconds and then shut back down.
-Engine will stall and won't restart easily. I will have to wait a few minutes and try repeatedly and eventually It will start.

My car is throwing the following code:
-P0320 No Crank Reference Signal at PCM No reference signal (crankshaft position sensor) detected during engine cranking.

I tried driving the car today and same deal, the car ran great for about 10 minutes and then started to stall. I made it into a mall parking lot and left it there. Got a ride home. Came back later to pick the car up when it had cooled down.

I think my fuel pump is taking a dump.

Please help me. My neon is very sick. Having no car around here this time of year sucks, the transit system is on strike too.

gilly02le · Post by **gilly02le** » Fri Jan 02, 2009 5:42 am

Get a new crank sensor boss, bcuz when they fail, this same type of thing happens. Cam sensors will do the same thing as well, usually the car stalls out, and can't be restarted though. I would assume it doesn't stall when its cold because its using pre-determined fuel/spark tables on the pcm, and meters itself with the o2 sensors once its warmed up.

P.s - long time no see man, was wondering if you sold your neon or somethin!

deep1ca · Post by **deep1ca** » Fri Jan 02, 2009 6:19 am

gilly02le wrote:Get a new crank sensor boss, bcuz when they fail, this same type of thing happens. Cam sensors will do the same thing as well, usually the car stalls out, and can't be restarted though. I would assume it doesn't stall when its cold because its using pre-determined fuel/spark tables on the pcm, and meters itself with the o2 sensors once its warmed up.

P.s - long time no see man, was wondering if you sold your neon or somethin!

Hows it goin buddy? Yeah long time. I missed the entire season, was outta the country from may till september. Still got the neon, she'll be staying till she ends up at the junkyard, but shes gonna turn into the beater soon.... although I already beat the shit outta my car lol. Gonna be picking up an RSX in the spring and boosting it over the summer. Already started collecting parts.

I just googled bad crank position sensor symptoms and I think thats probabbly what it is.

Anybody know the part number for a Crank position sensor for 2001 neon?

Post by **occasional demons** » Fri Jan 02, 2009 10:14 pm

5269703 MSRP $105.00
Electrical - Powertrain control - Crankshaft position sensor
Crankshaft position sensor, all models, 2.0l, 2.4l 1995 - 2002

deep1ca · Post by **deep1ca** » Sat Jan 03, 2009 4:21 am

Ordered one. $59.99 CAD from a third party store.

Passt · Post by **Passt** » Sat Jan 03, 2009 8:33 am

What store? My car throws this code once every few months it seems. I reset the pcm and it goes away for another couple months. Just trying to be prepared. Let us know if this fixes the problem

deep1ca · Post by **deep1ca** » Mon Jan 05, 2009 5:12 pm

It just a small local parts store here in ottawa called Big Boy auto.

Idiots told me they ordered it and that it would be ready for pick up on saturday... I went on saturday and the part had not yet arrived. I was told it was gonna be here Monday, i'm about to go pick it up now, lets hope its there.

And once I get it, does anybody know if its just plug and play? Do I just replace the sensor? Is there anything else I have to do? Reset computer?

I haven't even looked at where the sensor is to be honest, im just hoping its a quick in and out job that will take me 5 minutes.

Post by **occasional demons** » Tue Jan 06, 2009 7:53 am

Have never done it on a neon. But it is above the oil filter housing I believe. Should be plug and play. But if you don't want to wait for the alloted number of starts to clear the code, them you will have to disconnct the battery, or better go to an Autozone and have them clear it with the code scanner. No relearn time involved that way, and if you have to take in for repair they have a better history to work with.

deep1ca · Post by **deep1ca** » Thu Jan 08, 2009 8:23 pm

Sensor replaced.... car running perfectly

deep1ca · Post by **deep1ca** » Sat Jan 31, 2009 5:43 pm

Its been 3 weeks since the part was installed....car ran perfectly for 3 weeks....and today it stalled again and threw the Crankshaft position sensor error. WTF! I't wouldn't start and eventually the battery went flat. Had to have it towed.

Garage is gonna check it over to see if the sensor failed, or if theres a problem in the circuit/wiring, or possibly the computer.

Post by **occasional demons** » Sun Feb 01, 2009 12:32 am

This is a common problem with the 4.0's in jeeps. The oem sensor is problematic enough, but from what i've heard the aftermarket ones are worse. Mine has served me well, tho. The only drivetrain related problem I've had on the XJ, is the exhaust mani.

deep1ca · Post by **deep1ca** » Sun Mar 08, 2009 8:49 pm

So I replaced the sensor, car has been running fine since...

..but I no longer feel comfortable driving my car, Its always in the back of my head that it will break down somewhere.

Meh, i'm selling it next month. Picking up an RSX or an EP3