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blackrtaz
Dodge Dakota
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8/27/2003
17:50:12
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 Subject: RE: what the hell is wrong with my truck?
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Sh!t! make sure your plugs are good and tight...ya never know!
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zooks
Dodge Dakota
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8/27/2003
18:59:51
|  RE: what the hell is wrong with my truck?
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That is easy get a TOYOTA TUNDRA. You can never go wrong with Jap.
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wthiswrong
Dodge Dakota
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8/27/2003
20:49:41
| RE: what the hell is wrong with my truck?
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i already checked the plugs, and they were ok. i have not completely ruled out the cats. i was under my truck today checking them out, and it does look like i have some black crap on the passenger side cat/pipe (1st cat near motor), so that may be a possiblity. i will clean the throttle body and iac/tps sensors tomorrow, just to rule that out. i guess i will go ahead and buy a chilton manuel for this rig and find out exactly where the crank positioning sensor is and see if i can replace it myself....sensors usually dont cost much money. does anybody know where the sensor is on a 4.7 and does anybody know how difficult it is to replace? thanks for the help guys, i really do appreciate it
zooks--kick me while i'm down why dont ya...thanks for the help.
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Mykr
Dodge Dakota
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8/27/2003
22:06:49
| RE: what the hell is wrong with my truck?
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P0320-No Crank reference signal at PCM
When monitored: With ignition on.
Set Condition: No signal from the crankshaft position sensor is present during engine cranking, and at least 3 camshaft position sensors have occurred.
-------------------------------------------------
There are 15 possible causes listed.
There are up to 18 diagnostic steps listed. (5pages)
A very common suggestion for repair in these steps are replacement of the Crankshaft Position Sensor", however wiring / connector troubleshooting comes up often as well.
I'm not sure how expensive this part is (PN# 56028 136AC) for the 4.7L, but unless your interested in going through much wire chasing to check for opens/grounds/shorts etc.
I'd say it's a better than average bet.
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janesy
Dodge Dakota
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8/27/2003
22:23:54
| RE: what the hell is wrong with my truck?
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before you get the sensor, i looked into it for my 93 and they were $139 trade, thats Canadian, a dealer can plug in and test the sensor to make sure it works. That price was for my 318, so i would think that the 4.7 would be similarily priced. Go to you local dealer find a guy on his coffee break and flip him a 20 to scan the system, then it can be tested but thats a lot of cash for a senser if it ain't the prob.
good luck
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wthiswrong
Dodge Dakota
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8/27/2003
22:27:33
| RE: what the hell is wrong with my truck?
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Mykr- thanks for the elaborate info. i went to autozones website and they sell the sensor for $36.99 as a special order item; thats not bad, i can handle that. but like you said, if its just a bad ground or short or something, then i really do not think i will be able to find the problem. i guess if worse comes to worse i can dip into my childs college fund and take it to the dealer...j/k.
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wthiswrong
Dodge Dakota
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8/27/2003
22:31:54
| RE: what the hell is wrong with my truck?
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janesy- i would love to take my truck to a dealer to have it scanned, but the only way it is going anywhere will be on a wrecker or flatbed; if i have to come to a stop, the motor dies, and SOMETIMES it will start up after about 5-10 seconds of cranking, and SOMETIMES it doesnt start up at all........for quit a while anyways. thanks for the advice though.
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Rob 1
Dodge Dakota
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8/27/2003
22:46:42
| RE: what the hell is wrong with my truck?
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I'm not positive on the 4.7 but on my truck the crankshaft sensor is located on passenger side bellhousing behind little rubber plug. Pull out plug and sesor is held in place by two bolts. Not real hard to replace. Alot of times the heat from the engine can get to it or wires leading to it and cause it to go bad or short out. Hope this helps. If thats not location on your truck just ask guys at parts store when you pick it up someone there most likely will be able to tell you.
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wthiswrong
Dodge Dakota
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8/27/2003
22:58:21
| RE: what the hell is wrong with my truck?
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now remember, we ARE talking about the 4.7 liter here..you know, the engine with the damn water thermostat housing ON THE BOTTOM OF THE ENGINE!...LOL. so, there is no telling where this sensor is. i will check in the location that you mentioned tomorrow morning.......thank you very much for the help.
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FL 4WD
Dodge Dakota
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8/27/2003
23:00:47
|  RE: what the hell is wrong with my truck?
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If memory serves me correctly, the crank sensor is located on the right side of the engine, it bolts derectly to the block and is somewhere near the middle of the engine (not at the ends) The sensor should be inline with the centerline of the crank.
We have not had any problems with the crank sensors. (have not replaced one since the 4.7 came out.)
Check dealer price on a sensor too.
SOME early 4.7's had a problem with cam sensors contacting the tone wheel. (cam and crank MIGHT share a power/ground)
If someone has a schematic handy, they can check and see what other components share a ground OR power with the crank sensor.
If there is a short somewhere in your harness, a CAREFUL inspection may save you $$$$$ if you find it. (before starting a wiring short search, I get customer authorization for at least 3 hours to start, about $200 +)
Get a good work light and start at the sensor, then follow the harness at it heads toward the PCM. Look everywhere the harness runs over, around, or through something. Also check the harness leading to other components that share a common ground/power with the crank sensor.
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Mykr
Dodge Dakota
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8/28/2003
07:42:19
| RE: what the hell is wrong with my truck?
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The crank and cam sensors do share some wiring. Although according to the diag / code it is getting some cam sensor rotation inputs. If you need I can send a print if your up to the task of doing some troubleshooting.
BTW:
REMOVAL - 4.7L
The Crankshaft Position (CKP) sensor is located at the lower right-rear side of the engine cylinder block. It is positioned and bolted into a machined hole in the engine block.
(1) Disconnect CKP electrical connector at sensor.
(2) Remove CKP mounting bolt.
(3) Carefully pry sensor from cylinder block in a
rocking action with two small screwdrivers.
(4) Remove sensor from vehicle.
(5) Check condition of sensor o-ring.
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wthiswrong
Dodge Dakota
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8/28/2003
09:02:30
| RE: what the hell is wrong with my truck?
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mykr-thanks for the help man. i got under the truck to take a look, and i cant even SEE the damn sensor. do you think it would be eaiser if i removed the fender-well, or possibly even the entire fender? would it give me a better visual on the sensor? if you can, let me know before i start unbolting body parts..lol.
im not very good with troubleshooting, so i dont want to waste your time by sending them to me...hell, i probally wouldnt even know what i was looking at, to be honest with you, but i really do appreciate it. its beginning to look more and more like i am going to have to suck it up and have it towed to a dodge dealer.
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Rob 1
Dodge Dakota
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8/28/2003
11:51:20
| RE: what the hell is wrong with my truck?
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Before you go to tearing off body parts you might try going to "allexperts.com" in the automotive section and click on Dodge and they have guys there who claim to have 30 yrs or more experience in Chrysler Garage. Don't know how long takes to get an answer but might be wort a try. Let us know if they help for future refrence.
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wthiswrong
Dodge Dakota
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8/28/2003
12:07:22
| RE: what the hell is wrong with my truck?
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OK Rob 1....I will do that, and I will get back with yall when i hear something....thanks!
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wthiswrong
Dodge Dakota
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9/09/2003
15:31:21
| RE: what the hell is wrong with my truck?
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OK...i got the crankshaft sensor in with no problems at all. i disconnected the negative side of the battery before i started this task. after i was done, i reset the pcm, connected the negative battery terminal back up, and the truck fired right up with no problems, held a good idle and ran perfectly. but i still have a check engine light on with a p0700 code (something about the tranny) but the tranny seems fine to me. will it just take a few hundred miles for engine light to clear itself, or do i need to take it to the dealer and have them clear it??.....other than this, the truck is running great! thanks alot for the help guys, i do appreciate it.
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