Recent content by 87chevyDB
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Speedometer accuracy
I’m not sure what transfer case I have exactly. Based on reading threads maybe an NP208. If I remember correctly the truck I took everything off of was a 75 Cheyanne 3/4ton 4wd- 87chevyDB
- Post #2
- Forum: Transmission & Transfer Case
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8
Speedometer accuracy
1987 Silverado 1/2ton original 2wd automatic converted to 4wd manual. (Th350 I believe, to SM465 4speed) Hello all! I’ve got a question regarding my speedometer. I swapped the transmission about 10 years ago but just recently decided to try and get my truck road ready again. The speedo cable...- 87chevyDB
- Thread
- Replies: 1
- Forum: Transmission & Transfer Case
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87’ Silverado vacuum lines
Thanks for the photos and help! Waiting on some parts to come in. I will update when I get them put on, replace the vacuum lines, and see what it does. Thanks again!!- 87chevyDB
- Post #5
- Forum: Engine & Performance
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87’ Silverado vacuum lines
Awesome thank you! Is that one running from front of throttle body to valve cover on passenger side . And another running from top of throttle body to driver side valve cover? Also vacuum on the MAP sensor runs back behind the throttle body it looks. Is that correct? I’ve got a picture of the...- 87chevyDB
- Post #3
- Forum: Engine & Performance
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87’ Silverado vacuum lines
Hello all! I’ve got a 1987 Silverado TBI. All of the vacuum lines that are related to the TBI and emissions need replaced. And I’m not totally sure they’re all there that are supposed to be there. Question 1. There’s a larger one off the back behind the throttle body coming out of the intake...- 87chevyDB
- Thread
- Replies: 4
- Forum: Engine & Performance
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Rough idle/ intermittent starting problems
I believe all of those are in place but will have to confirm tomorrow.- 87chevyDB
- Post #8
- Forum: Engine & Performance
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Rough idle/ intermittent starting problems
It’s cranks but either won’t start or pops off for 5 seconds or so and dies then won’t start back is the current state. But the day I changed the 02 sensor and wrapped the headers it cranked idled okay but almost always backfired when you started driving after making it 50 feet or so.- 87chevyDB
- Post #6
- Forum: Engine & Performance
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Rough idle/ intermittent starting problems
MarineOne Just to make sure we’re on the same page. The O2 sensor is mounted on the header itself does this need to be moved Further back on the exhaust? It being mounted there was what concerned me with over heating as I’m not educated on where it was originally located on the exhaust system...- 87chevyDB
- Post #4
- Forum: Engine & Performance
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Rough idle/ intermittent starting problems
Hello all. I have a 1987’ silverado single cab king bed I’m working on. On some days the truck runs like a brand new one and on other days it won’t start at all. No rhyme or reason. Attached are the current codes I’m getting. Recent work I’ve done in hopes of resolving this issue are as follows...- 87chevyDB
- Thread
- Replies: 7
- Forum: Engine & Performance
