Replaced the evap core for the a/c... had to tear out the dash.. reinstalled everything... now it cranks.. wont start...odo is saying no bus.. chkd all connections..trans indicator keeps scrolling

Art Troyan
10

Asked by Art Aug 22, 2013 at 12:14 AM about the 2001 Dodge Dakota 2 Dr SLT 4WD Extended Cab SB

Question type: Maintenance & Repair

New 4.7 l engine

6 Answers

judge_roy
Not Active

If your battery is older than five will stop accepting a charge...newer batteries are made from a tin/antimony alloy and do not last but five years...A new one will have the full 13.5 volts....though 12 Volts may be okay and start you just fine, will cause the alternator to work overtime....yours sounds like a grounding problem...undo the black 1/0 cable what attaches to the frame and wirebrush the frame and the lug to assure the needed 300 or so Cold Cranking Amps...inextricably they share THIS ground connection with the ECU and other delicates that do not like varying amperages available and varying voltages and begin to give problems~....false CEL on account of undervoltage...etc.~

1 out of 1 people think this is helpful.
Art Troyan
10

From what ive been reading?...everyone has been replacing the PCM?...And the problem goes away...

1 out of 1 people think this is helpful.
Chris McGee
3,185

No bus in the cluster means no B+ circuit from the PCM there is either a pinched wire under the steering column or a broken or shorted wire.

1 out of 1 people think this is helpful.
judge_roy
Not Active

these fully encapsulated modules usually do not go bad, but succumb to undervoltages and bad ground~ If you bench tested the PCM, BCM, or ECM you'd find them to operate normallly, but when installed are not getting sufficient ground to operate correctly~

judge_roy
Not Active

A powertrain control module, abbreviated PCM, is an automotive component, an electronic control unit (ECU), used on motor vehicles. It is generally a combined control unit, consisting of the engine control unit (ECU) and the transmission control unit. On some cars, such as many Chryslers, there are multple computers: the PCM, the Transmission Control Unit, and the Body Control Module, for a total of three separate computers as an example. These automotive computer's are generally very reliable. The PCM commonly controls more than 100 factors in a car or truck. There are many hundreds of error codes that can occur, which indicates that some subsection of the car is experiencing a problem. When one of these errors occurs, usually it will turn on the "check engine" light on the dashboard. The PCM is one of potentially several onboard computers, or essentially the "brain" of the engine control system. When the "brain" does not function correctly, neither will the engine or anything else that the microprocessor controls, which may include the charging system, transmission, various emission controls and communications with other onboard control modules. The PCM should be replaced only when it is diagnosed to be defective.

judge_roy
Not Active

...that was helpful....NOT~

Your Answer

Related Questions

  • Chevy>Dodge 4 answers

    I owned a 2003 dodge Dakota 3.6L V6 SLT Worst vehicle I have Ever owned! @50k miles: *Rear view mirror fell down *Anti lock brake error *Transmission began to skip 2nd, and 3rd gears *Intake Manifold...

    2003 Dodge Dakota

    -

    Maintenance & Repair

  • dodge dakota recalls 1 answer

    Does anyone know of a recall on the 2003 Dakota concerning the ball joints for the 2 wheel drive and also a/c leaking in the passenger floor board. Thanks. swa1982

    2003 Dodge Dakota

    -

    Maintenance & Repair

  • 4x4 Transfer case 163 answers

    Good afternoon all. About two weeks ago my Durango's 4x4 started to engage without being switched and with no indication on the instrumentation panel. The problem is that this is happening on the high...

    2005 Dodge Durango Limited 4WD

    -

    Maintenance & Repair

  • You mean to tell me there is noone who has replaced the rear heater core on a dodge 3.3l??? 2 answers

    send answers to cujo731@homesc.com

    Dodge Caravan

    -

    Maintenance & Repair

  • cant shift my 98 durango into 4x4 13 answers

    my truck wont shift into4x4 drive it is very hat\rd to shift and will not go into gear,when i try to go into nuteral then 4 wheel high it starts grinding can u help me ?

    1998 Dodge Durango 4 Dr SLT 4WD SUV

    -

    Maintenance & Repair

Dakota
Looking for a Used Dakota in your area?
CarGurus has 5,017 nationwide Dakota listings starting at $1,400.
ZIP:

Search Dodge Dakota Questions

Dodge Dakota Experts

#1 Justin Doucette
Justin Doucette
Reputation 490
#2 banana
banana
Reputation 460
#3 Snidely
Snidely
Reputation 370
View All

Related Models For Sale

Used Dodge Ram Pickup 1500"
825 Great Deals out of 16,094 listings starting at $1,800
Used Ford F-150"
2,253 Great Deals out of 183,635 listings starting at $1,000
Used Toyota Tacoma"
465 Great Deals out of 17,856 listings starting at $2,450
Used Ford Ranger"
332 Great Deals out of 7,251 listings starting at $1,500
Used Chevrolet Silverado 1500"
1,981 Great Deals out of 173,681 listings starting at $950
Used Nissan Frontier"
292 Great Deals out of 15,613 listings starting at $2,495
Used Chevrolet S-10"
55 Great Deals out of 2,022 listings starting at $1,700
Used GMC Sierra 1500"
774 Great Deals out of 61,513 listings starting at $1,995
Used Toyota Tundra"
471 Great Deals out of 24,368 listings starting at $2,995
Used Jeep Wrangler"
802 Great Deals out of 41,528 listings starting at $1,800
Used Dodge Durango"
361 Great Deals out of 20,615 listings starting at $1,800
Used Dodge Ram Pickup 2500"
230 Great Deals out of 5,542 listings starting at $2,995
Used Ford Explorer Sport Trac"
100 Great Deals out of 1,961 listings starting at $499

Used Cars For Sale

2010 Dodge Dakota For Sale
6 Great Deals out of 105 listings starting at $6,900
2009 Dodge Dakota For Sale
49 listings starting at $6,500
2008 Dodge Dakota For Sale
15 Great Deals out of 273 listings starting at $6,982
2007 Dodge Dakota For Sale
13 Great Deals out of 333 listings starting at $5,999
2006 Dodge Dakota For Sale
30 Great Deals out of 611 listings starting at $4,995