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4.3

  1. 262ci Forum (4.3)
    2002 GMC Sonoma Ext Cab. 4.3 Vortec, automatic transmission Well around a week or so ago, my truck overheated really badly. I blew both head gaskets, melted a fuel injector poppet, broke #1?? (unsure) piston, scratched wall of said piston. I also intend on getting a timing job done. What else...
  2. 262ci Forum (4.3)
    So I have a 1989 S10, 4.3, V6. This was owned by one other gentleman and he only did routine maintenance. The only issue there was when I bought it was a fuel pump issue. It sat for about three years. since then I have done the following... -fuel pump -spark plugs -wires -cap and rotor -water...
  3. S10 / S15
    So I have a pretty much stock 91 4.3 4x4 and I was looking at building it up. But my problem is I like off-roading but I still like speed and I want to make a decent balance between quick and strong to hold up to logging roads and mud holes but still handle good on the road.
  4. S10 / S15
    So a while ago i straight piped my s10, i have the 4.3l and i love the sound, although my neighbors hate it. When i did this i just snipped the o2 sensor and figured it wouldnt matter, but im not sure anymore. I did the exhaust about 2 months ago, recently after a car meet, where i revved the...
  5. Transmission & Rearend
    Hey guys, I searched and searched but could not find the info needed. I'm going to be installing a new clutch kit and flywheel on my 1994 4.3 "Z" VIN 4x4 manual s10 and I'm trying to order the parts in advance. I notice there are two different casting numbers for the flywheel: 10218655 and...
  6. S10 / Sonoma
    Just about done rebuilding my 4L60E for my 2000 4.3L S10. To get this transmission ready to put back in I am cleaning all of my grounds. I removed the battery and bracket it sits on to get at the grounds and I found a plug just lying on the chassis not plugged into anything. I cannot figure out...
  7. 262ci Forum (4.3)
    Hello everyone I'm new to the forum and sorry if I'm not posting in the right spot but I just picked up a 2003 s10 step side, with zq8 option 122000kms(76000miles) I'm looking to wake up the 4.3 any suggestions????
  8. 262ci Forum (4.3)
    Hello my truck has recently started hard starting every time I go to start it. The exception to this is when I get gas right after I get gas will start fast no problem like before but before I really even get down to 3/4 tank it will do the same thing as before. It also has a rougher idle than...
  9. 262ci Forum (4.3)
    I have a 91 s10 blazer with the 4.3. Occasionally it had white smoke out of the exhaust, but it was mainly noticeable in park or when stopped at a red light. The coolant levels are consistent and haven't needed to be topped off. It has a slight misfire during idle in park, but runs rough in...
  10. Cam

    262ci Forum (4.3)
    So I want a cam that’s going to increase hp and torque that’s reliable and I don’t have to do any machining or valve train work to. Any suggestions on cam options or what specs I can get away with? I have a 2000 zr2 4.3
  11. S10 / S15
    Ok, so I bought a 93 s10 with a 4.3. While messing around changing plug wires and checking some other stuff I managed to bump the coolant line that goes to the back of the intake beside the distributor. Any good ideas on how to get this out and after/if I get it out, can I just plug it off? I...
  12. S10 / S15
    So I've got my 95' S10 still running good. About to replace the front discs and rear shoes. I previously stated I would do a rebuild, but I've decided against it. I want to go for a crate motor. From what I've seen, it's cheaper and has what I want to do with my truck. My major issue is that I...
  13. 262ci Forum (4.3)
    May be simple may not be. I bought a 97 s10 4.3l 5 speed about a year ago it’s super sketchy but runs, has what looks like a kill switch under the dash and everything else. Every now and then it seemed like the starter would skip so i popped it off and it was only held by one of the two bolts...
  14. 262ci Forum (4.3)
    I have a 91 Chevy C1500 with a 4.3l out of a 93 astro van that burns oil badly, it smokes upon start up and I just noticed tonight that it was smoking when I was driving. I've got oil all over the underside of the engine, the trans and almost everything in between. Just did an oil change and put...
  15. 262ci Forum (4.3)
    Was backfiring and would not stay running , had it towed home and it sat for roughly 6 months now will not start at all. Any suggestions would be greatly appreciated, I hope it's nothing too serious
  16. 4.3 vortec parts

    4.3 vortec parts

    What is a fair price for bulk? Block has seized crankshaft but everything else is good.
  17. 262ci Forum (4.3)
    Thanks for this great site. i think i've read most of the posts dealing with engine surging, but mine has trouble codes that are different. '97 zr2, 4.3, 250k miles. has been surging badly at shift points when 1600-1800rpm. idles fine. codes are listed below. thanks for a review suggestions...
  18. S10 / Sonoma
    I recently had to replace my fan, both shroud pieces, and radiator. they were on about a week and a half and the fan tore the shroud up again. no its not my motor mounts. i cant afford to keep replacing these parts so id like to move to an electric fan system. its a no brainer at this point...
  19. 262ci Forum (4.3)
    Alright, I have a 02 Sonoma 4.3 Vortec automatic, extended cab with 240,000 miles. Currently I'm having a few odd issues and I'm having trouble figuring out if they are connected in some way. Here's my laundry list of problems with it. And attempted solutions -When my engine temperature hits...
  20. PatsBlueXtreme

    PatsBlueXtreme

    I looked for a good while to find this one. When I first saw it I was sold on it. Even more so when I drove it. The blue is so dark that it looks black at night. In the day it reflects the blue of the sky and looks even better. Of course it was only 4 1/2 hours from my house to go look at the...
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