The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - '87 R10 suburban 350 V8 TBI stalls at lights

**nlped** · 06-13-2010, 12:30 PM

I had pretty much the same issue with my old '87. It threw the MAP sensor code too, and like Desert said, I checked the vacuum line first & sure enough it had a small melted spot in it. I replaced the line, cleaned the vacuum source nipple (I love saying nipple

) out with some cleaner spray, and poof...Good as new. Give it a try.

I don't know about the TPS on these trucks, but I do know that you need to adjust them on some imports, and my mustangs. I'm sure someone can chime in on this though.

Good Luck,

Ed

06-13-2010, 12:30 PM	#29
nlped Senior Member Join Date: Jul 2009 Location: Hayden, Al. Posts: 4,147	Re: '87 R10 suburban 350 V8 TBI stalls at lights - suggestions? I had pretty much the same issue with my old '87. It threw the MAP sensor code too, and like Desert said, I checked the vacuum line first & sure enough it had a small melted spot in it. I replaced the line, cleaned the vacuum source nipple (I love saying nipple ) out with some cleaner spray, and poof...Good as new. Give it a try. I don't know about the TPS on these trucks, but I do know that you need to adjust them on some imports, and my mustangs. I'm sure someone can chime in on this though. Good Luck, Ed __________________ Carter 1968 Chevy SWB Fleet... Walt 1963-1/2 Ford Falcon Futura...Martha