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A story about a Challenger that won't start... #4655018
02/03/18 03:37 PM
02/03/18 03:37 PM
Joined: Aug 2017
Posts: 660
MN
14Accent Offline OP
14Accent  Offline OP
Joined: Aug 2017
Posts: 660
MN
I found this to be just dumb enough and funny to share:

Customer had his 2013 Challenger towed in. He said it stalled without warning and wouldn't restart. Got it in, pulled codes, found ASD relay circuit low. Found the circuit wire and sure enough it was shorted to ground. UNTIL the TIPM was unplugged. What in the actual??

After much back tracing and cursing, the culprit ended up being a shorted washer pump. It back fed through the control circuit which is also controlled by the TIPM and caused a chain reaction that geeked the PCM. You've got to be kidding me...

At least this job keeps you thinking on your toes once in a while!


2013 Chevrolet Volt - Saves enough in fuel to pay for itself!

2003 Cadillac Seville STS - The winter "beater", it uses the Volt's fuel
Re: A story about a Challenger that won't start... [Re: 14Accent] #4655029
02/03/18 03:48 PM
02/03/18 03:48 PM
Joined: Nov 2008
Posts: 12,761
NH
supton Offline
supton  Offline
Joined: Nov 2008
Posts: 12,761
NH
That's pretty wild! Good find.


2011 Toyota Camry, base, 2.5L/6MT, 170k, hers
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1999 Toyota Camry LE, 2.2L/4AT, 195k, his
Re: A story about a Challenger that won't start... [Re: 14Accent] #4655034
02/03/18 03:56 PM
02/03/18 03:56 PM
Joined: Jun 2005
Posts: 11,605
Santa Barbara, CA
bdcardinal Offline
bdcardinal  Offline
Joined: Jun 2005
Posts: 11,605
Santa Barbara, CA
Good times. Our techs get weird ones like that and pull their hair out trying to figure it out. Customers still think you just hook up a scan tool and it tells the tech the problem.


2014 Ford Mustang GT Track Pack
1995 Ford Mustang GT

Ford/Mazda Parts Counter
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Opinions expressed are my own.
Re: A story about a Challenger that won't start... [Re: 14Accent] #4655057
02/03/18 04:17 PM
02/03/18 04:17 PM
Joined: Nov 2008
Posts: 3,269
Oshawa, Ontario Canada
JC1 Offline
JC1  Offline
Joined: Nov 2008
Posts: 3,269
Oshawa, Ontario Canada
Chrysler/dodge products are known for these shorts.

Good find.


2015 Grand Caravan SXT Plus 5w-20 PPPP/Fram Ultra Filter
1997 Honda Civic CX 5w-30 Shell Conventional/Fram Ultra Filter
Re: A story about a Challenger that won't start... [Re: 14Accent] #4655059
02/03/18 04:19 PM
02/03/18 04:19 PM
Joined: Jun 2003
Posts: 33,550
ME
eljefino Offline
eljefino  Offline
Joined: Jun 2003
Posts: 33,550
ME
I had a ford contour (mine) and I went out to get something from it at the parking lot at work and heard it buzzing. Put my hand on stuff and found it to be the ignition module/ coil pack. I yanked its relay and it shut up. IIRC I swapped it with the horn relay and had no further issues.

Cracks me up that dodge still uses these things-- they had them in K-cars in the 80s!

Re: A story about a Challenger that won't start... [Re: eljefino] #4655080
02/03/18 04:41 PM
02/03/18 04:41 PM
Joined: Aug 2010
Posts: 5,924
Champlain/Hudson Valley
Kira Offline
Kira  Offline
Joined: Aug 2010
Posts: 5,924
Champlain/Hudson Valley
Hey man, it's that "Extra care in engineering...Chrysler, Plymouth and Dodge".

Remember that slogan from the '60's? It made us laugh then. Any company that got that many government contracts had to be crooked.

By the way, what is the ASD relay? What is the TIPM (a module)?

The PCM is the Power Control Module, no?

Re: A story about a Challenger that won't start... [Re: 14Accent] #4655088
02/03/18 04:45 PM
02/03/18 04:45 PM
Joined: May 2012
Posts: 953
Rio Rancho, NM
Pajero Offline
Pajero  Offline
Joined: May 2012
Posts: 953
Rio Rancho, NM
Nothing better than creative thinking outside the box and experience!






Respectfully,

Pajero!


Always remember "Planned obsolescence."

1994 Montero SR 3.5 DOHC, 133,xxx
Fram Ultra/ Snorkel with Pre-filter
K-9-Co-pilot
Re: A story about a Challenger that won't start... [Re: bdcardinal] #4655109
02/03/18 05:19 PM
02/03/18 05:19 PM
Joined: Aug 2017
Posts: 660
MN
14Accent Offline OP
14Accent  Offline OP
Joined: Aug 2017
Posts: 660
MN
Originally Posted By: bdcardinal
Good times. Our techs get weird ones like that and pull their hair out trying to figure it out. Customers still think you just hook up a scan tool and it tells the tech the problem.


So true! Weird thing about this one was that the scanner didn't report ANYTHING about the washer pump! I do a brief inspection on ever car I touch, including wiper/washer operation. I had noted that the washers were inop, but that's as far as it went. I did a system scan using my Solus Ultra and other than comm codes due to the aftermarket radio and the ASD relay code, the only other code was for "Throttle plate - unable to open". I assume the PCM uses the ASD circuit to power the throttle motor, rendering that system inop as well.

In the end, lots of small clues that really had nothing to do with one another, until they did.


2013 Chevrolet Volt - Saves enough in fuel to pay for itself!

2003 Cadillac Seville STS - The winter "beater", it uses the Volt's fuel

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