New guy in Franklin, TN

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hikertrash87c10

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Feb 26, 2024
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Location
franklin, TN
First Name
CJ
Truck Year
1987
Truck Model
R10
Engine Size
350
Hi all, just picked up a 1987 350 TBI and having some stalling issues after about 30 minutes of driving and some slight idle fluctation at time as well. I have already replaced the ignition moduel with an ACdelco one and have a new MAP sensor headed my way now. I have 2 young kids so time is tough to work on it but also looking to see if anyone knows a good mechanic around this area that might be able to assist me when needed/possibly look at doing a motor swap. Thanks in advanced!
 
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animal

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legopnuematic

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Mr Clean

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Strick

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Dunn, NC
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C20 Crew
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350
Hello there new guy. My SIL just got an 87 350 TBI truck that has similar issues as well. When I get a chance to wrench on it I'll clue you in. Search the site & you'll find similar discussion threads. Good luck.

HS
 

JamesSam

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Location
VA
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Sam
Truck Year
1987
Truck Model
Silverado V10
Engine Size
5.7 L 350 v8
Welcome from VA. I also have a 1987 350 TBI. I have done several things to this truck but have not replaced the ignition sensor or the map sensor. I am intrigued because I had an issue once when my truck sounded and felt like it was going to shut off on me when I was at a stop, then I changed the spark plugs and it runs great again. It does have varying differences in idle once started but usually settles down. I know it can use a tune up. I am anxiously awaiting what I learn from your projects. Cheers.
 

ali_c20

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brooksman9

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hikertrash87c10

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Location
franklin, TN
First Name
CJ
Truck Year
1987
Truck Model
R10
Engine Size
350
Hello there new guy. My SIL just got an 87 350 TBI truck that has similar issues as well. When I get a chance to wrench on it I'll clue you in. Search the site & you'll find similar discussion threads. Good luck.

HS
Thanks Strick, looking forward to hearing what you discover! Good luck!
 

hikertrash87c10

Junior Member
Joined
Feb 26, 2024
Posts
7
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7
Location
franklin, TN
First Name
CJ
Truck Year
1987
Truck Model
R10
Engine Size
350
Welcome from VA. I also have a 1987 350 TBI. I have done several things to this truck but have not replaced the ignition sensor or the map sensor. I am intrigued because I had an issue once when my truck sounded and felt like it was going to shut off on me when I was at a stop, then I changed the spark plugs and it runs great again. It does have varying differences in idle once started but usually settles down. I know it can use a tune up. I am anxiously awaiting what I learn from your projects. Cheers.
JS, when my truck started running really rough the ignition sensor made all the difference in the world. I have a vac gauge on order now to start testing that out and then will look into spark plugs next. which brand did you go with? did you do wires as well- if so which ones? Thinking about a fuel pump next as well, put a gauge on it last week and it sat right around 10psi. Does anyone know what psi it should be reading?
 

PeteJr

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GTX63

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Tennessee
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Ty
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WFO

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Texas Panhandle
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JamesSam

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VA
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Sam
Truck Year
1987
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Silverado V10
Engine Size
5.7 L 350 v8
JS, when my truck started running really rough the ignition sensor made all the difference in the world. I have a vac gauge on order now to start testing that out and then will look into spark plugs next. which brand did you go with? did you do wires as well- if so which ones? Thinking about a fuel pump next as well, put a gauge on it last week and it sat right around 10psi. Does anyone know what psi it should be reading?
I used AC Delco plugs and the Advance Auto knock off wires. Got them all at Advance.
 

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