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Express & G-Series Vans Offered in both a full size van, or a large box truck, the Express is the modern GM workhorse

Chevrolet Express
Platform: GMT Van

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Old 01-31-2012, 03:23 PM
CF Beginner
Join Date: Jan 2012
Posts: 4
Default Where is MAP sensor located?

I have a 2000 CHEVROLET EXPRESS 3500 7.4L V8. Where is the MAP sensor located? does anyone have any images/drawings that will show its location. I have looked all over the intake manifold and retraced every vacuum line, but still can't find it! The code indicated a bad MAP sensor, but I can't find one to replace?!?!

any help is appreciated.

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Old 01-31-2012, 05:25 PM
CF Veteran
Join Date: Mar 2011
Posts: 1,706

Consider getting is serviced instead of throwing parts at the problem. Anyway, the MAP sensor is on the lower intake manifold:
Click the image to open in full size.
But, in order to get there, you have to remove the upper intake plenum:
Click the image to open in full size.
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Old 02-01-2012, 08:58 AM
CF Beginner
Join Date: Jan 2012
Posts: 4

Thanks for the images. That was exactly what I was looking for. I failed to mention earlier in the post that the van just had a full tune up a few months ago. I'm planning on pulling the existing MAP sensor and bench testing it before I purchase a new part.

I'm just not familiar with these Chevy's...I'm more of a Jeep guy...specifically the 4.0 xj.

I appreciate your help!
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Old 02-01-2012, 08:58 AM

3500, 74, chevrolet, exprees, express, intake, located, location, map, sensor, sensorina, sensors, upper, van, vans, wherw

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