Full Size K5 (1969-1991) GMT415 (1992-1994) Tech Discuss any and all full size K5 general tech topics here.

new coil now engine misfiring and no power

  #1  
Old 05-08-2010, 01:09 AM
New Member
Thread Starter
Join Date: May 2010
Posts: 5
Meanagersmom is on a distinguished road
Angry new coil now engine misfiring and no power

Son has 90 K5 blazer. He was driving it week ago, engine sputtered and just died, He said it turned over starter working but would not start. we know the coil was in need of replacement. Dad had it towed to shop and they replaced coil and starter? dont know why starter but they did. Dad then had stereo shop disconnect remote starter. Immediatley after now the truck is barely running, rough idle, like missfire, no power, dies out and I have checked everything, coil , coil wires with volt meter, it is getting fuel, there was a leak in line to fuel filter, fixed. Recently replaced egr vac syl , re checked not the problem, control module changed , not the problem. The heater core went on it about 3 weeks ago and have not yet replaced bypassing it. rotor and cap are new, new spark plugs as well as fuel filter. No vac leaks as far as I can tell. Anyone have any ideas. I am at a loss here??? I know jeeps not chevys Help
 
  #2  
Old 05-08-2010, 09:08 AM
abig84's Avatar
BF Veteran
Join Date: Aug 2009
Location: munster indiana
Posts: 3,426
abig84 will become famous soon enoughabig84 will become famous soon enough
Default

Check the timing also recheck the firing order maybe they got swiched around.
 
  #3  
Old 05-08-2010, 03:44 PM
New Member
Thread Starter
Join Date: May 2010
Posts: 5
Meanagersmom is on a distinguished road
Default

checked firing order, all okay there, need to check timing. thanks for suggestions. Any would be appreciated. Really getting tired of wasting time and money.
 
  #4  
Old 05-08-2010, 03:48 PM
New Member
Thread Starter
Join Date: May 2010
Posts: 5
Meanagersmom is on a distinguished road
Default

I have a question for anyone out there, I have read on these forums a lot about a coolant temp sensor causing similar problems? There is still a somewhat strong fuel smell from exhaust. Like perhaps running too rich? Where is this thing at and how would I go about changing this or at least unplugging it to check to see if running. When the hearer core went, the temp shot up suddenly and wondering if that could have done something to this thing? Anyone??? Any advice???
 
  #5  
Old 05-08-2010, 04:57 PM
abig84's Avatar
BF Veteran
Join Date: Aug 2009
Location: munster indiana
Posts: 3,426
abig84 will become famous soon enoughabig84 will become famous soon enough
Default

Could be. Happened to a 91 at my job. It just kinda ran crappy. But its like right on top of the engine at the front. Its only like a $5 part. I don't know how you can really test it. We plugged it into the computer and when the truck was at operating temp it was telling the computer it was still cold so it was dumping more fuel
 
  #6  
Old 05-09-2010, 03:10 PM
New Member
Thread Starter
Join Date: May 2010
Posts: 5
Meanagersmom is on a distinguished road
Default

I'll give that a try. Thanks again.
 
  #7  
Old 06-13-2010, 11:33 PM
Beginning Member
Join Date: Jan 2010
Location: Joliet, IL
Posts: 26
Shaggy is on a distinguished road
Default

Do you have spark? I would suggest checking the wires on the pickup coil, especially since you recently did the cap and rotor. Those two wires are VERY thin and if original they are probably very brittle.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
blainenbecky
General Chat
1
03-09-2013 10:38 PM
bse8881
1st Gen S-series (1983-1994) Tech
12
03-15-2011 12:24 PM
Lancealot
2nd Gen S-series (1995-2005) Tech
8
02-22-2011 07:34 AM
ExplicitYourSelf
2nd Gen S-series (1995-2005) Tech
14
06-07-2010 06:25 PM
ff_holt1
2nd Gen S-series (1995-2005) Tech
0
05-14-2010 01:35 AM


Thread Tools
Search this Thread
Quick Reply: new coil now engine misfiring and no power


Advertising
Featured Sponsors
Vendor Directory

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.