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No crank and no check engine light

Tiny
PETED81
  • MEMBER
  • 2004 TOYOTA MATRIX
  • 156,000 MILES
I attempted to clean the intake with some seafoam. While the engine was warm I removed a vacuum line to the throttle body and sucked 1/3 pint into the intake. As per instructed I turned engine off and waited 5 minutes. When I went to start it, no crank. CEL was not lit upon key to "ON" position, only seatbelt and oil light on.
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Friday, January 27th, 2012 AT 11:11 PM

10 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Try pulling the spark lugs and see if it will turn over. Depending on how fast you duped the sea foam in it may have hydrauliced the engine seizing it if it turns over with plugs out reinstall them and clean as much oil off of them as possible, like with chokecleaner and let it dry before reinstalling them. Then try to start it.
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Friday, January 27th, 2012 AT 11:28 PM
Tiny
PETED81
  • MEMBER
  • 6 POSTS
No luck when spark plugs removed. Same symptoms. No crank.
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Sunday, January 29th, 2012 AT 3:41 PM
Tiny
PETED81
  • MEMBER
  • 6 POSTS
I jumped the starter and it turns over fine but still no luck starting car. My scan tool can not link with computer. Any other ideas? Thanks for your help.
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Sunday, January 29th, 2012 AT 5:25 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
I'm sending a schematic of the starting system. Check the fusible link which has a red arrow going to it. That is a smaller wire connected to alarger one. It will kind of obvious if it is burnt up. If not check your neutral safety switch and starter relay, which the shcematic will tell you where they are.
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Sunday, January 29th, 2012 AT 6:14 PM
Tiny
PETED81
  • MEMBER
  • 6 POSTS
Update: I found the cause of the problem. It was the 15amp fuse to the ECM. Thanks for your help.
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Sunday, January 29th, 2012 AT 9:15 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Nice work.

Have a nice day.
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Monday, January 30th, 2012 AT 1:54 PM
Tiny
PETED81
  • MEMBER
  • 6 POSTS
Further Update: The car blew another fuse on my way to work this morning. AM2 fuse 15amp. I tried to replace it with a 30amp spare fuse I had and the car still wouldn't start. I'm having it towed to my work and going to try to look at it tonight. Any suggestions?
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Monday, January 30th, 2012 AT 2:42 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Something is causing a short in the circuit and you need to go through everything associated with this fuse.

ABS,
Charging,
Combination Meter
Cruise Control,
Electronically Controlled Transmission.
Engine Control,
Ignition.
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Monday, January 30th, 2012 AT 3:48 PM
Tiny
PETED81
  • MEMBER
  • 6 POSTS
Update: Replaced blown AM2 fuse. Nothing. Replaced blown 30a Main fuse. Nothing. Noticed AM2 blown again. Replaced. Car runs! I let it run for 45 minutes at 2000 rpms. Seems to be good to go so far.
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Tuesday, January 31st, 2012 AT 2:15 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
You definitely have a short somewhere and it is intermittent. It is going to come back anytime.
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Tuesday, January 31st, 2012 AT 12:35 PM

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