1995 Blazer Idle/Run Problems
#1
Thread Starter
Join Date: Sep 2007
Location:
Posts: 10

Here are the symptoms: Was running good, shut it off at the bank and when it was started back up here is what we had:rough idle, misses on acceleration, tach needle jumps and falls at steady run conditions, engine is running hot, seems to take longer to shift and holds RPM higher and longer to do so. Any ideas or folks w/ similar problems that were solved or maybe and indentical posts? Thanks in advance for any help.
#2
Is the truck showing any codes? if so Auto Zone can scan it and give you somewhere to start.
if not I have done the following I have simular problems.
Clean EGR, When carboned up it will cause a very rough idel,
Clean IAC idel air control valve, also gets carboned up
I replaced TPS Throttle position sensor, cleared up my rough shift from 1st to 2nd
Check fuel pressure, Specifics can be found on this site
Change fuel filter
I believe my problem is a bad fuel injector(CPI) as mine is now starting to hesitate on mild ecceleration when cold but clears up at highway speeds.
Hope this info helps.
if not I have done the following I have simular problems.
Clean EGR, When carboned up it will cause a very rough idel,
Clean IAC idel air control valve, also gets carboned up
I replaced TPS Throttle position sensor, cleared up my rough shift from 1st to 2nd
Check fuel pressure, Specifics can be found on this site
Change fuel filter
I believe my problem is a bad fuel injector(CPI) as mine is now starting to hesitate on mild ecceleration when cold but clears up at highway speeds.
Hope this info helps.
#3
Thread Starter
Join Date: Sep 2007
Location:
Posts: 10

Here are the codes: P0300,P0323,P0326,P0341,P1406,P1442. I have found what they are called, but cannot find anywhere explaining them. Any ideas? Thanks.
#4
go up to the search tab and type in the code, There is alot of info on the codes or just type in the word code but I'll take a look
#5
http://www.s10forum.com/forum/f107/d...-codes-198381/ try this link or try Google
search for each code
search for each code
#6
titleAndStar(159,0,0,false,",")Junior Member
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Posts: 159
Joined: 1/6/2008
Status: offline
http://www.s10forum.com/forum/f107/diagnostic-trouble-codes-198381/
try this link
#7
Thread Starter
Join Date: Sep 2007
Location:
Posts: 10

I understand what the codes stand for, I guess what I am looking for is the troubleshooting steps for these codes. I've spent all afternoon and up until now scouring the web for the procedures. Any ideas? Thanks. Dan
#8
test forum is acting up
#9
try cleaning EGR valve
#10
carbon build up on EGR will make truck run like crap po1406 start there




