The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1988 - 1998 GMT400 Chevy & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 04-11-2014, 12:17 PM   #1
89chevy2500
Registered User
 
Join Date: Apr 2014
Location: Reno NV
Posts: 6
1989 Help

Hey my 1989 Chevy 2500 is burning oil every time I start it up then about 5 mins into the drive whenever i try to accelerate from a stop the engine revs high and does not deliver on the power then suddenly after a few seconds the power is all there wondering what is the problem
89chevy2500 is offline   Reply With Quote
Old 04-12-2014, 12:49 PM   #2
Cabnchassis
Registered User
 
Join Date: Mar 2014
Location: Redwood City
Posts: 242
Re: 1989 Help

By burning oil you mean it smokes when you start it? what color is the smoke? White, blue, black? Do you get an engine light when you lose power?
__________________
1991 R3500 3+3 C+C 6.2/4l80e/14ff Fleetside Dually
1992 K2500 ECLB 5.7/4l80e/14sf(g80) 8600gvwr
1991 CR500 (95 Burb wouldn't stop catching fire )
Cabnchassis is offline   Reply With Quote
Old 04-12-2014, 08:25 PM   #3
89chevy2500
Registered User
 
Join Date: Apr 2014
Location: Reno NV
Posts: 6
Re: 1989 Help

Yes it smokes blue smoke when it starts up and yes the check engine light comes on around the same time that the engine starts to lose power. However sometimes the truck just will not accelerate and there is no sign of problems with gauges or check engine light
89chevy2500 is offline   Reply With Quote
Old 04-12-2014, 09:05 PM   #4
ChevyTech
Registered User
 
Join Date: May 2004
Location: Minnesota
Posts: 4,621
Re: 1989 Help

Retrieve the trouble code/codes.
http://67-72chevytrucks.com/vboard/s...5&postcount=11

Let us know what you find.
Blue smoke on start up sounds like valve seals.
__________________
For those of you that are wondering why you are not getting replies to your thread:
Did you give the model, year, engine, fuel system type, and transmission information?
If it is modified from what came stock from the factory, let us know that too.
ChevyTech is offline   Reply With Quote
Old 04-13-2014, 03:29 PM   #5
89chevy2500
Registered User
 
Join Date: Apr 2014
Location: Reno NV
Posts: 6
Re: 1989 Help

I found that i don't have the ALDL connector. My dad and i looked all over passenger and driver side dash. Could it be located anywhere else?
89chevy2500 is offline   Reply With Quote
Old 04-13-2014, 06:10 PM   #6
bloertcher
Registered User
 
bloertcher's Avatar
 
Join Date: Jul 2003
Location: Springfield,Mo.
Posts: 305
Re: 1989 Help

A poor photo,but thats what your looking for.The large black object to the left is the hood release handle.
Attached Images
 
__________________
RIP Baby Jack 2-06-07
See You On The Other Side My Little Man
bloertcher is offline   Reply With Quote
Old 04-13-2014, 09:08 PM   #7
89chevy2500
Registered User
 
Join Date: Apr 2014
Location: Reno NV
Posts: 6
Re: 1989 Help

Everything I've read including pictures I've seen says it should be there but it's not. My dad has one on his truck we know what they look like. This truck doesn't have one.
89chevy2500 is offline   Reply With Quote
Old 04-20-2014, 08:53 PM   #8
89chevy2500
Registered User
 
Join Date: Apr 2014
Location: Reno NV
Posts: 6
Re: 1989 Help

I found the port and got the error code 32 which was the EGR valve could that be causing the engine bogging down and loosing power
89chevy2500 is offline   Reply With Quote
Old 04-22-2014, 11:46 AM   #9
Cabnchassis
Registered User
 
Join Date: Mar 2014
Location: Redwood City
Posts: 242
Re: 1989 Help

Yes that could easily be it.
__________________
1991 R3500 3+3 C+C 6.2/4l80e/14ff Fleetside Dually
1992 K2500 ECLB 5.7/4l80e/14sf(g80) 8600gvwr
1991 CR500 (95 Burb wouldn't stop catching fire )
Cabnchassis is offline   Reply With Quote
Old 04-25-2014, 08:53 AM   #10
ChevyTech
Registered User
 
Join Date: May 2004
Location: Minnesota
Posts: 4,621
Re: 1989 Help

Generally code 32 gets set from lack of EGR function.

To much EGR operation can cause a noticeable lack of power.
__________________
For those of you that are wondering why you are not getting replies to your thread:
Did you give the model, year, engine, fuel system type, and transmission information?
If it is modified from what came stock from the factory, let us know that too.
ChevyTech is offline   Reply With Quote
Old 05-10-2014, 04:03 PM   #11
89chevy2500
Registered User
 
Join Date: Apr 2014
Location: Reno NV
Posts: 6
Re: 1989 Help

I recently replaced the EGR and still having momentary losses of power. Drove the truck without the air cleaner and had no problems. Could this be a air/fuel ration problem?
89chevy2500 is offline   Reply With Quote
Old 05-10-2014, 06:00 PM   #12
Tx Firefighter
Watch out for your cornhole !
 
Tx Firefighter's Avatar
 
Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
Re: 1989 Help

Concerning your check engine light issue....

Replacing the EGR valve might or might not solve your trouble code. The intake manifold often gets clogged with carbon which is the root of the check engine light. The EGR valve functions perfectly, but with clogged passages, you're gonna get a code. The way to check it is to start engine and let it idle. Now, grab the EGR valve and open it with your fingers. The engine should stumble significantly. If not, you've got clogged intake manifold passages.

Concerning the power issue......

I'll quote your first post in this thread. "The engine revs high and does not deliver on the power then suddenly after a few seconds the power is all there wondering what is the problem"

You've got a transmission or drivetrain issue, not an engine issue. Sounds like trans slipping if its an auto or clutch slipping if its a standard.
__________________
I'm on the Instagram- @Gearhead_Kevin
Tx Firefighter is offline   Reply With Quote
Reply

Bookmarks

Tags
engine, troubleshooting


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

Forum Jump


All times are GMT -4. The time now is 11:02 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com