Crank shaft sensor

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Crank shaft sensor

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Crank shaft sensor - 4/19/2008 8:33:40 AM

Steviemags

Posts: 4
Joined: 4/18/2008
Status: offline

I have removed the o-ring from the sensor mounting hole and replaced the sensor
There still is no spark when cranking the engine (I even put back the old on e and tried that one again)
Is there anything else I can try besides the computer
Steve

Post #: 1

RE: Crank shaft sensor - 4/19/2008 8:50:11 AM

ken99

Posts: 399
Status: offline

quote:

I have removed the o-ring from the sensor mounting hole and replaced the sensor
There still is no spark when cranking the engine (I even put back the old on e and tried that one again)
Is there anything else I can try besides the computer

You previously said you pulled an error code for the CPKS with a scanner. Did you reset the error code? Also, there is at least one fuse in the engine compartment and one under the dash that involves the ignition. I don't have time this morning to look those up, but they should be listed in the owners maual. I'd start checking fuses. You can also find the fuse chart online at:

http://www.hmaservice.com/

You may have to put the scanner back on the car to see if another error code has manifested itself now that the sensor issue has been addressed.

(in reply to Steviemags)

Post #: 2

RE: Crank shaft sensor - 4/19/2008 10:32:37 AM

Steviemags

Posts: 4
Joined: 4/18/2008
Status: offline

I have put the computer on and it gives me the same reading

(in reply to Steviemags)

Post #: 3

RE: Crank shaft sensor - 4/19/2008 11:45:14 AM

ken99

Posts: 399
Status: offline

From http://www.hmaservice.com/:

1999 > G 2.0 DOHC > Fuel System

DTC - P0335, P0336 (the error codes from your scanner)

TROUBLESHOOTING HINTS

a.If unexpected misses are felt during driving or the engine stalls suddenly, shake the crankshaft position sensor harness. If this causes the engine to stall, check for poor contact at the sensor connector.

b.If the tachometer reads 0 rpm when the engine is cranked, check for faulty crankshaft position sensor or ignition system problems.

c.If the tachometer reads 0 rpm when the engine is cranked and it does not start, ignition coil, power TR, or an ECM defect can be considered.

d.Engine can be stalled when the crankshaft position sensor cable is close to the high voltage cable due to the electronic noise caused by the high voltage induced.

1999 > G 2.0 DOHC > Fuel System

HARNESS INSPECTION PROCEDURE

SENSOR INSPECTION

1.Disconnect the crankshaft position sensor connector.

2.Measure the resistance between terminals 2 and 3.

3.If the resistance deviates far from the standard value, replace the sensor.

========================================================

There's a possability that the problem resides in the ECM, which is not servicable only replacable.

< Message edited by ken99 -- 4/19/2008 11:51:14 AM >

(in reply to Steviemags)

Post #: 4

RE: Crank shaft sensor - 4/21/2008 11:19:47 AM

Steviemags

Posts: 4
Joined: 4/18/2008
Status: offline

I have checked all the items
The car starts and stays running
If I shut the car off when it is running at normal tempature it will not start (no spark) untill it cools off

Steve

(in reply to Steviemags)

Post #: 5

RE: Crank shaft sensor - 4/21/2008 2:16:14 PM

Doohickie

Posts: 856
Joined: 2/6/2006
Status: offline

This happens on my old 95 Escort. Try this when it's warm: turn the key from OFF to ON (but not START). Wait about 10 seconds, then go to OFF and right back to ON, wait 10 seconds. Do that about 5 times and see if the car fires up. If so, according to some guy on CarTalk.com, the problem has something to do with the internal seals on the fuel pump.... it's kind of a vapor lock condition. If the car does not start quickly enough due to that, the pump shuts down as a safety precaution. (I can actually hear the pump shutting off on my Escort.)

I got that diagnosis about 5 years ago, and never replaced the fuel pump. If I get a no-start condition with my Escort, I just cycle it back and forth a few times and it always starts up.

What the heck.... it's worth trying, right?

_____________________________

(in reply to Steviemags)

Post #: 6

RE: Crank shaft sensor - 4/21/2008 4:56:58 PM

ken99

Posts: 399
Status: offline

quote:

This happens on my old 95 Escort. Try this when it's warm: turn the key from OFF to ON (but not START). Wait about 10 seconds, then go to OFF and right back to ON, wait 10 seconds. Do that about 5 times and see if the car fires up. If so, according to some guy on CarTalk.com, the problem has something to do with the internal seals on the fuel pump.... it's kind of a vapor lock condition. If the car does not start quickly enough due to that, the pump shuts down as a safety precaution. (I can actually hear the pump shutting off on my Escort.)

I got that diagnosis about 5 years ago, and never replaced the fuel pump. If I get a no-start condition with my Escort, I just cycle it back and forth a few times and it always starts up.

Hmmm, but how would a bad fuel pump prevent spark and generate a bad crank position sensor code?

(in reply to Doohickie)

Post #: 7

RE: Crank shaft sensor - 4/21/2008 5:26:38 PM

ken99

Posts: 399
Status: offline

Steve - Review this forum thread at http://www.hyundaiforum.com/m_12855/mpage_1/key_/tm.htm. Same vehicle and symptoms as yours. Replacing the CPKS was the correct action, but the replacement part came with a bolt shorter than the original sensor. The shorter bolt wasn't holding the sensor in place or aligning it properly with the flywheel target. If you still have the original sensor bolt, swap that with the one on the new sensor. I hope this solves your problem.

Ken

(in reply to Steviemags)

Post #: 8