ML 320 1999 intermittent no start
07-28-2018, 02:09 AM
#1
Junior Member
Thread Starter
ML 320 1999 intermittent no start
Car runs great except for intermittent no start with a twist - the car keeps cranking when key returns to position "2" has to be turned all the way off to stop cranking. Thinking bad ignition switch. Seems to happen when car is warm/hot.
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Matt Lyon (09-15-2019)
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dogobat (07-28-2018)
07-28-2018, 09:26 AM
#4
Junior Member
Thread Starter
more than an hour - just happened to my wife again yesterday, tried to start after nail app't, (5:00) no go, picked it up @ 8:30 started right up.
07-28-2018, 10:16 AM
#5
MBWorld Fanatic!
You should have the codes read, but without code knowledge, I would say that the Crankshaft Position Sensor is faulty and should be replaced.
What is your full vin"
What is your full vin"
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dogobat (07-28-2018)
07-28-2018, 10:26 PM
#10
Junior Member
Thread Starter
using an Innova code scanner, no codes. I used this scanner when I bought the vehicle to correctly diagnose a problem w/the brake lights, so I know it'll read a code.......car right now refuses to display it's errant behaviour while I'm in the garage with wrenches and code scanner at the ready.......of course.........
07-29-2018, 12:07 AM
#11
MBWorld Fanatic!
This scanner will read all modules in any vehicle. I still think it is the Crank Sensor.
Last edited by Maj. Dundee; 07-29-2018 at 12:15 AM.
07-31-2018, 01:31 PM
#12
Junior Member
Thread Starter
Thanks, Maj. Dundee - I'm going to replace that sensor even w/o the code - will report back w/ results. New scanner is on the list.
08-01-2018, 07:35 AM
#13
MBWorld Fanatic!
Without your vin# there are three poss. part numbers. Please post your full vin#
Also understand the this sensor should be bought from a dealer , or a Bosch on line.
08-08-2018, 02:22 PM
#14
Junior Member
Thread Starter
okay, new part installed, (yeah, I didn't squint properly and ordered the wrong one.......) so far so good. Good hot weather for the next couple days, if the problem doesn't show itself, will file this under "Happy Ending"
2 things learned.
1) listen to Dundee.
2) if that doesn't work, go back to step 1
2 things learned.
1) listen to Dundee.
2) if that doesn't work, go back to step 1
08-17-2018, 09:31 AM
#16
Junior Member
Thread Starter
ok week and a half later, all symptoms gone, just moved son to Pullman - 'bout 1800 miles since repair, all good! Now for a door lock accuator and check strap........
10-02-2018, 11:34 PM
#17
Dundee,
I have the same problem (not starting). I originally thought it was my MAF sensor, so I replaced that. My ca did not want to start on 2 separate occasions prior changing the MAF and it happened again today after replacing the MAF. It will restart once the engine has cool down a bit. Once I'm able to start it, i do get a check engine light on and the codes i received are P0335 and P2034.
I Was wondering if I give you y VIN number if you can check which sensor I need to buy? I have read there are 2 different types. I'm confident this is the part I need
My VIN 4JGAB54E51A237687
Since MAF sensor is not the problem, would you recommend I return this part and put my back my old one? I hate to waste money if that was not the part I needed. My indy hinted on replacing it soon and when my car didn't want to start I figured I needed to replace it because it has similar symptoms. I did not check the codes until after I have already installed the MAF sensor. Thoughts?
Many thanks in advance
I have the same problem (not starting). I originally thought it was my MAF sensor, so I replaced that. My ca did not want to start on 2 separate occasions prior changing the MAF and it happened again today after replacing the MAF. It will restart once the engine has cool down a bit. Once I'm able to start it, i do get a check engine light on and the codes i received are P0335 and P2034.
I Was wondering if I give you y VIN number if you can check which sensor I need to buy? I have read there are 2 different types. I'm confident this is the part I need
My VIN 4JGAB54E51A237687
Since MAF sensor is not the problem, would you recommend I return this part and put my back my old one? I hate to waste money if that was not the part I needed. My indy hinted on replacing it soon and when my car didn't want to start I figured I needed to replace it because it has similar symptoms. I did not check the codes until after I have already installed the MAF sensor. Thoughts?
Many thanks in advance
10-03-2018, 02:53 AM
#18
MBWorld Fanatic!
The MAF Sensor has nothing to do with the starting of the car nor does it have anything do do with keeping the car running.
You must replace the Crankshaft Position Sensor. It is located between the back of the eng. and the beginning of the trans.
Most of the sensors have a metal shield covering the sensor which must be remove first.
10-03-2018, 10:55 AM
#19
The MAF Sensor has nothing to do with the starting of the car nor does it have anything do do with keeping the car running.
You must replace the Crankshaft Position Sensor. It is located between the back of the eng. and the beginning of the trans.
Most of the sensors have a metal shield covering the sensor which must be remove first.
Thanks Dundee. Appreciate the info. I do see the sensor and the connector but I don't see any metal shield covering it?
10-04-2018, 07:32 AM
#20
MBWorld Fanatic!
10-04-2018, 11:18 PM
#21
replaced the sensor today with success. I do have a question. When I pulled out the old sensor I noticed it had oil on the sensor. I’m assuming that’s normal because it’s inside the Trans but I wanted to confirm the oil on the sensor was normal.
Thanks again
10-05-2018, 04:20 AM
#22
MBWorld Fanatic!
You might have a small leak from the rear eng seal or a leak at the front trans seal. To do either requires removing the trans. Live with it and just monitor if the intermittent no start recurs.
10-05-2018, 12:23 PM
#23
The sensor goes through the trans. bell housing and picks up a signal from the fly wheel (not pictured).
You might have a small leak from the rear eng seal or a leak at the front trans seal. To do either requires removing the trans. Live with it and just monitor if the intermittent no start recurs.
10-05-2018, 06:47 PM
#24
The sensor goes through the trans. bell housing and picks up a signal from the fly wheel (not pictured).
You might have a small leak from the rear eng seal or a leak at the front trans seal. To do either requires removing the trans. Live with it and just monitor if the intermittent no start recurs.
dundee ,
forgot to ask, do I have to clear the code? I have no check engine light on but I went to Oreilly to see what codes are stored and CPS codes are still there. Do I have to find someone to clear them or don’t worry since the check engine is not lighting up?
Thanks
10-06-2018, 07:59 AM
#25
MBWorld Fanatic!
