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My 2008 f 250 6.4 diesel wont crank over but will start if you jump the starter solinoid and runs trouble code shows no communication with pcm and stuck in start

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6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

SOURCE: 2003 Caravan No Crank, 3.3L

This is a bad PCM. Try to disconnect the security system first and if it still does not start then it is the PCM.

Posted on Aug 11, 2008

aaangie220
  • 202 Answers

SOURCE: 2002 pontiac aztek wont crank or start

did you try the starter relay.

Posted on Feb 12, 2009

  • 63 Answers

SOURCE: new starter new battery still wont start last

Very likely the new battery is defective - it happens. If you have a know good new battery, then also connect a jumper from the battery negative to the block just to be sure its not a defective or loose ground cable.

Posted on Aug 05, 2009

cincinaty5
  • 132 Answers

SOURCE: 2003 Dodge Caravan 3.3 No Crank, No Start

replace the neutral safty switch

Posted on Aug 28, 2009

  • 14 Answers

SOURCE: 99 f250 diesel wont crank

First thing to check for is if the starter has a thermal overcrank or not, thermal overcrank sensor is located right on the starter it should have two wires going to the connector, check to make sure you have a ground to one wire at key engine off, next if ground is present on one wire plug back into sensor on starter and make sure ground is bridge or present on other wire, if ground is not transfer to other circuit when plugged in then thermal overcrank sensor is bad than just jump circuit or replace sensor, now if ground is not present on either circuit at key on engine off than applied ground to both wire and retest starter cranking at key switch, please update once test is complete, thanks.

Posted on Sep 23, 2009

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1 Answer

97 Isuzu rodeo v6 motor won't start after disconnecting pcm before disconnecting the battery. Replaced pcm properly still won't start.


auto or stick shift transmission?
correlation is not always causation.!!!
example: if I open the glove box, and the engine stalls, It probably is not the glove box lamp doing that.

The 97 cars have very few learn modes.
in fact, none kill engines dead, ever.

the trouble with your post is it says nothing useful. sorry.
1: cranks robustly but will not start?
2: will not crank, or just clicks, or the starter motor is silent.?
the starter can also chatter, or free run, spin fast but engine not.
if it wont crank ,
jump start it, if it will not cranks still , crank in NEUTRAL.
PRNDL move lever to N per the steps in the operators guide.
3: cranks ok, there are 50 reasons for that.
if your car reads statistics, the spark plugs are bad, ignored.
do say this time what the engine did. exactly , you did not.

4: cranks ok , do so with wide open throttle to clear floods
this is secret mode in the op. guide that cuts off the fuel injectors.
V6, 3.1., 3.2 , 3.5Liter?

Jan 06, 2017 | 1997 Isuzu Rodeo

2 Answers

2001 buick century stalled without warning. tried to restart, but wouldnt crank, no fuel pump noise, no click. had power to radio, heater fan, flashers but not dashboard lights (prndl, fuel gauge).


Make sure battery has a full charge and battery connections all good. Check fusible links where applicable. Any component that doesn't work and is fuse protected, not only check the fuse, check the fuse circuit for voltage, use a test lite.
The wiring diagram is for starter circuit, you can see the fuses. Any testing for starter motor, make sure tranny is in park or neutral and parking brake is set. It is possible to jump crank relay to see if starter motor will crank, but, that doesn't mean it will start. Make sure vehicle can't move.
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Nov 21, 2016 | 2001 Buick Century

1 Answer

Buick century 3.1 2000 security light staying on car wont crank what can that be


It's the anti-theft system . (SECURITY ) Keeps vehicle from being stolen !
Important: If the wrong ignition key is used in an attempt to start the vehicle, a Data Trouble Code (DTC) will be set and the Body Control Module (BCM) will not send a fuel enable or starter enable message to the Powertrain Control Module (PCM) for three minutes even if the correct ignition is used.
The Pass-Key II?® Theft Deterrent system prevents vehicle theft by disabling the starter motor and fuel system. If the Body Control Module (BCM) dose not identify the use of the correct ignition key to start the vehicle, the (BCM) will communicate a message to the Powertrain Control Module (PCM) which will disable the crank relay and fuel delivery to the engine.
When the (BCM) identifies the use of the correct ignition key (resistor pellet) to start the vehicle, the (BCM) will send a fuel enable and starter enable message to the (PCM) which will allow the vehicle to start.
Your best bet would be have it towed to a qualified repair shop !

Aug 29, 2016 | 2001 Buick Century

1 Answer

Won,t start ..battery was dead..jumped.. Recharged.wont crank


Battery cable connections ? Need to hook up scan tool to see if the modules on the vehicle are communicating ! Voltage drop test starting system . Check START 1 relay in underhood fuse/relay box ! Check PCM/BATT fuse 10amp ! Check power at relay ! This video shows how ! VEHICLE RELAYS Operation Diagnosis If you don't know, best take to a ASE certified technician before you break it ? How to Test and Troubleshoot Starter Problem

Jul 29, 2015 | 2003 Buick LeSabre

1 Answer

08 Chevy Cobalt wont start. Battery is good.?


Is there a warning light , padlock an car symbol lit when it won't start ? I assume it has to be a bad starter? Every time i jump the car it starts up fine.??? It wouldn't be a starter then ! Have the charging system check out . Have a voltage drop test on the starter circuit done . Test from the starter relay . check out videos on youtube , but don't assume anything . Test , Test Test .

https://www.youtube.com/watch?v=WMXENKujYtc&t=6s

Starter Voltage Drop

VEHICLE RELAYS Testing from the relay base

Plus you need to know how the starter system works for the vehicle your trying to diagnose . I 'am a GM tech , Chevy , Cadillac , buick , GMC. Have access to GM factory repair info. Been to a lot of GM training school's . The computers on this vehicle have a lot to do with the starting of the vehicle ,PCM - engine computer , the ignition switch is a low voltage input to the BCM - body control module , which will send a message over the GMLAN serial data communication network to the PCM to energize the starter relay or crank relay .The PCM also has to see a voltage input coming from the transmission range selector switch , showing it's in park or neutral , has to have correct fuel enable password from the theft module etc...
Also it take's is a little corrosion , lose connetion , lower then normal circuit voltage for problem to happen .
Factory service repair manual discription

Moving the ignition switch to the start position signals the body control module (BCM) through discrete inputs from the ignition transducer that engine crank has been requested. The BCM verifies that theft is not active and sends a serial data message to the engine control module (ECM) requesting engine start. The ECM receives a ground signal from the park/neutral position (PNP) switch or a signal from the clutch pedal position sensor notifying that it is safe to start the engine. Ground G105 supplies ground for the CRNK relay coil. The starter relay coil control circuit is then supplied voltage by the ECM closing the switch in the starter relay suppling 12 volts from the CRNK fuse to terminal A of the starter. Ground is supplied to the starter solenoid through the engine block.

The first step in diagnosing a problem like this , hooking up factory scan tool , checking for DTC'S - diagnostic trouble code's , checking inputs to control modules that are in charge of starting the vehicle .

Testing an knowledge is the way to a fix , an testing cost $$$$$


Mar 19, 2017 | 2008 Chevrolet Cobalt

1 Answer

Wont start turn over with key but can jump accross starter


solinoid for starter is bad. on a lot of fords the solinoid is mounted on fender, under hood. if you jump from one side to other on solinoid, and it tries to start then solinoid is toast. just follow the positive cable from battery. and you will find it.

Aug 30, 2011 | Ford Windstar Cars & Trucks

1 Answer

Where is the starter solonoid located 04 aveo


You will need to verify if the starter solenoid is getting power when you are attempting to crank it. I dont have a diagram, but the clutch switch may be the problem if you must depress the clutch to start the engine.

Jan 16, 2010 | 2004 Chevrolet Aveo

1 Answer

1999 tahoe will not crank with ignition key


it sounds like the problem but the question is why wont the pcm start the car. with the key turned to on the service engine light sould be on. if not the pcm has no power.

Dec 31, 2009 | 1999 Chevrolet Tahoe

1 Answer

Starter wont engage


The problem is either the starter solinoid (located on fender near battery) or you are not getting power to the "s" terminal on the starter solinoid from the ignition switch. If you follow the positive battery cable from the battery you'll follow it to the solinoid. Remove the small wire from the terminal marked "s" on the solinoid and using a screwdriver jump from "s" terminal (not the wire) to where positive battery cable connects to solinoid. (with battery connected). If starter doesn't do anything the solinoid is bad. If starter cranks then you are not getting voltage from ignition switch through "s" terminal wire.

Feb 19, 2009 | 1997 Ford F150 Regular Cab

1 Answer

2003 Caravan No Crank, 3.3L


This is a bad PCM. Try to disconnect the security system first and if it still does not start then it is the PCM.

Aug 09, 2008 | 2003 Dodge Caravan

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