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2000 astro: mi..pulling..the freeway then check engine lite comes…

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2000 astro van - apprx...
2000 astro van - apprx. 4000 mi. ago pulling off the freeway then check engine lite comes on and transmission goes to mush can hardly clear the intersection at half throttle? Let the van sit for a while lite goes out van runs normal. That afternoon same thing. 3000 miles later it reappears. never on the hiway only around town speeds. van has 75,000 mi. I dont feel this is the trans mission but don't know.
Submitted: 8 years ago.Category: Chevy
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Answered in 3 minutes by:
6/18/2010
Chevy Mechanic: BOBBYSS, Master Technician replied 8 years ago
BOBBYSS
BOBBYSS, Master Technician
Category: Chevy
Satisfied Customers: 17,611
Experience: ASE MASTER CERTIFIED, AA DEGREE AUTO/DIESEL TECH
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Hello JACUSTOMER, is the check engine light on now?
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Customer reply replied 8 years ago
No, Yesterday it came on shortly after getting going (1 block) It than cleared itself Then I drove it 550 miles yesterday with no problems
Chevy Mechanic: BOBBYSS, Master Technician replied 8 years ago
Okay. It sounds like you have a bad catalytic converter. When this gets clogged then this can happen when it heats up. It may also be a problem with the fuel system. The next time the check engine light comes on I would have an auto parts stores scan the computer for codes. Bring the codes here and I can tell you what is going on.
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Customer reply replied 8 years ago
I couldn't wait any longer for ypur answer. took the van to a tranny shop where they read the code history. They said the code implies I need a new selonoid "B" assy. ??? sound right to you??
Chevy Mechanic: BOBBYSS, Master Technician replied 8 years ago
It could need a new solenoid, but this sounds more like an engine issue. Did they fix it?
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