Idles, but shuts off when transmission is shifted into gear?

LAURAREARDEN21

MEMBER
1993 CHEVROLET S-10
4.3L
4 CYL
2WD
AUTOMATIC
118,000 MILES

The vehicle listed above is a Blazer with a Vortex 4.3.
She cranks and idles just fine but when you put her in gear and press the gas, shuts off. Like she's being choked for fuel. Everything fuel-wise has been replaced. Help Please.

Thursday, October 13th, 2022 AT 7:56 PM

5 Replies

JACOBANDNICKOLAS

MECHANIC
108,254 POSTS

Hi,

Have you checked to make sure there are no engine vacuum leaks? Also, have you checked for diagnostic trouble codes?

This vehicle has an OBD1 system that doesn't require a scan tool to retrieve codes. Here is a link that explains how it is done. All you will need is a short jumper wire or even a paper clip.

https://www.2carpros.com/articles/buick-cadillac-chevy-gmc-oldsmobile-pontiac-gm-1983-1995-obd1-code-definitions-and-retrieval-method

Let me know what you find as far as codes. If you haven't checked for vacuum leaks, here is a link that explains how that is done.

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Take care,

Joe

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Thursday, October 13th, 2022 AT 9:31 PM

LAURAREARDEN21

MEMBER
3 POSTS

I will have that looked at first thing this morning. Thank you for the help and links. Whether it works or not, I will let you know.

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Monday, October 17th, 2022 AT 8:10 AM

JACOBANDNICKOLAS

MECHANIC
108,254 POSTS

Hi,

Thanks for the update. I look forward to hearing what is found. I'm interested in knowing.

Take care,

Joe

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Monday, October 17th, 2022 AT 5:38 PM

LAURAREARDEN21

MEMBER
3 POSTS

So, I got my truck home and finally got to see and hear it for myself and you were right. She has a couple vacuum leaks but her wiring is a complete disaster too. And thanks for the links to the scans link too. I'll be returning to fixing her this morning since the storm slacked off.

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Wednesday, October 26th, 2022 AT 2:04 AM

JACOBANDNICKOLAS