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Starts and stalls, it will idle for maybe 10 sec. and starts…

Customer Question
Starts and stalls Mechanic's...

Starts and stalls

Mechanic's Assistant: Is the check engine light on? Does the car stall at idle or when driving?

It will idle for maybe 10 sec. and starts to stumble then stalls

Mechanic's Assistant: What is the model of your '10 Chevy?

1999 corvette

Mechanic's Assistant: Are you fixing your Corvette yourself? What have you tried so far?

It had code for a map sensor and one for crankshaft sensor i erased them the map came back so i replaced it and it does the same thing

Submitted: 9 months ago.Category: Chevy
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Customer reply replied 9 months ago
It starts and idle strong but when i but my foot on gas pedal it bogs and starts to stumble like its running out of fuel i hooked up scanner and it had a po336 and it had a map code i erased them map code came back so i figured it was a hard code well i replaced it same thing
Answered in 8 minutes by:
8/6/2017
Chevy Mechanic: Mechanic01, ASE Certified Technician replied 9 months ago
Mechanic01
Mechanic01, ASE Certified Technician
Category: Chevy
Satisfied Customers: 2,655
Experience: Owner at Baltic investments
Verified

Hello my name is ***** ***** I will be assisting you with all of your vehicle questions today. Give me one moment while I review your question and come back with a answer. Please be aware I do not know your skill level or abilities so I will be asking a lot of questions and in a lot of cases we will respond to each other quite a lot before we find a solution. As far as phone calls are concerned that is the system prompting you, not me, and they do cost more money, I prefer text but in some cases a phone call is required.

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Chevy Mechanic: Mechanic01, ASE Certified Technician replied 9 months ago

what was the actually # code for that ?

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Chevy Mechanic: Mechanic01, ASE Certified Technician replied 9 months ago

oh nevermind I see it in the next text

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Chevy Mechanic: Mechanic01, ASE Certified Technician replied 9 months ago

so the map code is back and stays on?

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Customer reply replied 9 months ago
Po336,po108 also im a tech
Customer reply replied 9 months ago
It came back i replaced it now it doesn't have any codes but still the same problem
Chevy Mechanic: Mechanic01, ASE Certified Technician replied 9 months ago

because of the 336 and the continuing condition I would scope out the crankshaft sensor and see what the wave looks like and ohm it out as well for faults

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Customer reply replied 9 months ago
I'm wondering if the crankshaft sensor would cause that problem cause it starts just stalls
Chevy Mechanic: Mechanic01, ASE Certified Technician replied 9 months ago

it would for sure, do you have the troubleshooting breakdown for that and spec numbers?

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Customer reply replied 9 months ago
it doesn't run long enough to do much i was wondering was the pump falling out
Customer reply replied 9 months ago
i know how to check the sensor
Chevy Mechanic: Mechanic01, ASE Certified Technician replied 9 months ago

that could also be a issue, but we have to start somewhere, after the crank thats the next thing I would check

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Customer reply replied 9 months ago
i would of thought that if the crankshaft sensor had a problem it would have threw the code again
Chevy Mechanic: Mechanic01, ASE Certified Technician replied 9 months ago

depending on the severity of the fault it may have been working under the set parameters of the sensor and not able to throw the code but I bet if you crank on it all night it will come back up

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