Main IndexAuto Repair Home Search Posts SEARCH
POSTS
Who's Online WHO'S
ONLINE
Log in LOG
IN







1998 chevy p/u, crank, no start


  Email This Post



farm kid
User

Apr 5, 2012, 10:02 PM

Post #1 of 12 (3017 views)
1998 chevy p/u, crank, no start Sign In

code p0336 (crank sensor), replaced sensor,checked wiring harness for continuity to ecm, power and ground in harness ok. Also tried coil, ignition module, still no spark. Has fuel pressure, pump cycles normally. Thanks for any advice.


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Apr 6, 2012, 4:45 AM

Post #2 of 12 (2963 views)
Re: 1998 chevy p/u, crank, no start Sign In

Which pickup? engine size? Please don't type Cheyenne.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


farm kid
User

Apr 6, 2012, 3:26 PM

Post #3 of 12 (2928 views)
Re: 1998 chevy p/u, crank, no start Sign In

Vehicle is a 1998 Chevy K3500, 454, automatic.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Apr 6, 2012, 4:36 PM

Post #4 of 12 (2922 views)
Re: 1998 chevy p/u, crank, no start Sign In

Make sure you didn't bend any pins over in the sensor. I've seen that happen a couple times.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Apr 6, 2012, 6:33 PM

Post #5 of 12 (2914 views)
Re: 1998 chevy p/u, crank, no start Sign In

Inspect the crank sensor connector as HT stated.

The crank sensor is a hall effect. Do you have a multimeter and a 12 volt test lamp?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


farm kid
User

Apr 6, 2012, 10:18 PM

Post #6 of 12 (2905 views)
Re: 1998 chevy p/u, crank, no start Sign In

H/T, pins in connector ok,had that happen also, have multimeter(digital) and test lamp.


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Apr 6, 2012, 10:34 PM

Post #7 of 12 (2902 views)
Re: 1998 chevy p/u, crank, no start Sign In

At the crank sensor connector back probe the yellow wire at the connector.

Backprobing means sliding a pin or small paper clip into the back of the connector where the wire goes to make contact with the back of the terminal. This way you don't damage the terminals where they slide together.





Unplug the connector from the crank sensor.

Connect your meter's black lead to battery ground and touch the red lead to your back probe with the ignition on.

What is the voltage?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


farm kid
User

Apr 21, 2012, 9:12 PM

Post #8 of 12 (2821 views)
Re: 1998 chevy p/u, crank, no start Sign In

Sorry it took so song getting back on this. Voltage matched battery voltage (12.40) with ignition on and cranking (11.70).


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Apr 22, 2012, 11:02 AM

Post #9 of 12 (2805 views)
Re: 1998 chevy p/u, crank, no start Sign In

Plug the connector back in and move your back probe to the pink wire. Connect your meter lead to the probe and the other end to battery ground. Have someone crank the engine while you watch the voltage. What is the voltage?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


farm kid
User

May 17, 2012, 6:47 AM

Post #10 of 12 (2724 views)
Re: 1998 chevy p/u, crank, no start Sign In

Voltage reads zero.


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

May 17, 2012, 4:34 PM

Post #11 of 12 (2712 views)
Re: 1998 chevy p/u, crank, no start Sign In

You have no power to the sensor. Check the ECM1 fuse in the fuse panel under hood. If the fuse looks good, turn the ignition on and check for power at the fuse.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


farm kid
User

Jun 6, 2012, 7:19 PM

Post #12 of 12 (2633 views)
Re: 1998 chevy p/u, crank, no start Sign In

Rechecked voltage, must have had bad connection on tester. Voltage is same as battery with ignition on. Also tried different coil, ignition module, crank sensor. the help has been appreciated.


(This post was edited by farm kid on Jul 9, 2012, 10:36 PM)




1998 chevy p/u, crank, no start


  Email This Post
 
 


Feed Button




Search for (options) Privacy Sitemap

web statistics