1992 Chevrolet S-10 Cranks but won't start

Tiny
NEDRAH13
  • MEMBER
  • 1992 CHEVROLET S-10
  • 2.8L
  • V6
  • 2WD
  • MANUAL
  • 190,000 MILES
Replaced distributor o ring, engine started but idled rough. Tried to advance the timing and stalled. Tried restarting and battery died. Hooked up charger and tried to start, fried the ignition coil. Replaced the coil, tried to start, got a couple backfires but no start. Set timing to 0* TDC, with distributor out. Set distributor pointing to #1 spark tower. Dropped it back in, tightened it down, tried to start. Cranked but no start. Please help, I use my truck for work and I am losing money by the minute. Really really need help with this.
Sunday, November 15th, 2015 AT 8:09 AM

7 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
I assume that you have disconnected the wire to set timing otherwise you screwed everything up. Try replacing ignition module in dist. An dcheck pick up coil resistance.
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Sunday, November 15th, 2015 AT 8:20 AM
Tiny
NEDRAH13
  • MEMBER
  • 4 POSTS
Thanks for answering me. No I did not pull all the wiring, do I guess I had really screwed up. Resistance on the coil is good, replaced the button and cap last night and finally got it started, though it wasn't running right. Got OBD II codes 21, 34 @ 41. This morning I found a broken wire in the ignition coil harness on the secondary lead, got it repaired, dropped distributor back in distributor again, no start, thinking it's 180* out. Gonna flip and try again.
Really hoping it's not the module. I'm running out of money.

Any way to test the module?
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Wednesday, November 18th, 2015 AT 12:52 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
If distributor is new then it's probably not bad but auto parts can test modules. There is no code 41 check map sensor or vacuum line or a bad wire leading to it. If it won't start disconnect map and see if it does it may be that
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Wednesday, November 18th, 2015 AT 3:35 PM
Tiny
NEDRAH13
  • MEMBER
  • 4 POSTS
41 = incorrect cylinder select.

Replaced ICM. No start.

I don't know what else to do. Gas & a match I guess
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Thursday, November 19th, 2015 AT 10:30 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Code 41 is only for a 3.8L which you have a 2.8 so it is no good also do the checks i'm sending you for no spark if it's no fuel it's different. Make sure the dist is in correctly and wired right with previous reply.
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Thursday, November 19th, 2015 AT 12:13 PM
Tiny
NEDRAH13
  • MEMBER
  • 4 POSTS
She's running but ROUGH, backfiring through the throttle body.
?
Can't get it smoothed out. Got it timed @ 12 degrees.
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Thursday, November 19th, 2015 AT 2:53 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Timing should be 10 degrees but 2 isn't going to make a big difference. Make sure you have the dist in correctly and wires are hooked up to firing order which I sent earlier. Then short out each cylinder one at atime by pulling plug wires off when backfiring stops pull valve cover and look for a bent pushrod/rocker off, and check compression. I can be of no further assistance.
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Thursday, November 19th, 2015 AT 4:26 PM

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