CLEANING FUEL INJECTORS - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 02-02-2003, 11:20 PM   #1
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Jan 2003
Posts: 22
Thanks: 0
Thanked 0 Times in 0 Posts
RZJNVB is on a distinguished road
Default CLEANING FUEL INJECTORS

Thanks to everyone who responded to my last posting. In a few days I will be replacing my intake manifold on my 95 se, it has 190k miles on it. I'm hoping it'* just gaskets but I won't know until I take it apart.

Anything special I should know about tearing it apart and putting it back together?
Would you bother tearing off the heads and replacing the head gasgets? I will be replacing the o-rings on the injectors ... Is there any way to clean them up or test them? I was planning to soak them overnight in injector cleaner and than try to clean them up by hand. Will this hurt anything?? Should I clean the throttle body??
Is there anything else I should be replacing while I have it apart this far??

In the spring, I plan to replace the timing chain, oil pump, and oil pan gasket. I'm trying to make this car last for a long time since it'* my every day driver.

Any advice will be appreciated ....
This is a great site and I've learned alot from many of you. Thanks.
RZJNVB is offline   Reply With Quote
Old 02-03-2003, 01:10 AM   #2
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default Re: CLEANING FUEL INJECTORS

If you don't have any indication of head gasket failure, leave the heads alone. They should be fine. Replace the o-rings for sure, and yes, soaking them should be fine. Be careful not to dislodge any chunks into the nozzle that may plug them up.

Yes, you should also clean the throttle body, but remove the maf sensor first, and use an 'intake safe' cleaner, not carb cleaner. A toothbrush may come in handy, too.

Now would be a good time to change to a 180 thermostat, too.

Quote:
Originally Posted by RZJNVB
Thanks to everyone who responded to my last posting. In a few days I will be replacing my intake manifold on my 95 se, it has 190k miles on it. I'm hoping it'* just gaskets but I won't know until I take it apart.

Anything special I should know about tearing it apart and putting it back together?
Would you bother tearing off the heads and replacing the head gasgets? I will be replacing the o-rings on the injectors ... Is there any way to clean them up or test them? I was planning to soak them overnight in injector cleaner and than try to clean them up by hand. Will this hurt anything?? Should I clean the throttle body??
Is there anything else I should be replacing while I have it apart this far??

In the spring, I plan to replace the timing chain, oil pump, and oil pan gasket. I'm trying to make this car last for a long time since it'* my every day driver.

Any advice will be appreciated ....
This is a great site and I've learned alot from many of you. Thanks.
willwren is offline   Reply With Quote
Old 02-03-2003, 10:07 AM   #3
Senior Member
Posts like a Supercharger
 
Join Date: Sep 2002
Location: Albany OR WCBF '04 Survivor
Posts: 158
Thanks: 0
Thanked 0 Times in 0 Posts
JSeabert is on a distinguished road
Default

Definitley do not go down to the heads unless there is a head gasket failure. those things are a B**** to change . And like willwren said clean the throttle body, take out the maf screen AND the maf sensor. DON'T get any cleaner on the maf sensor. Those things are tempermental.
JSeabert is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Cleaning Fuel injectors on 00 SSEi Nobotada84 Performance, Brainstorming & Tuning 9 03-26-2011 06:36 PM
Installing used injectors... any recommended cleaning? big_news_1 1992-1999 13 01-27-2006 06:53 PM
Cleaning Fuel injectors Masterbm General GM Chat 2 12-11-2005 12:52 PM
cleaning my fuel injectors. valerka 1992-1999 0 05-21-2004 12:01 AM
Cleaning injectors Allmachtige 1992-1999 2 03-29-2003 02:14 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 12:24 PM.


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.