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Subject: 1988 chevy light 3/4 ton couple of problems
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Author Messages
webby4x4User is Offline
Forum Admin, Magazine Editor
Rock Star
Rock Star
Posts:2375


03/14/2007 9:49 AM  
Great point Snoman - the fuel injection system can't switch between open and closed loop efficiently if the 02 sensor isn't reaching the right temperatures.

Rick

Rick Webster

Editor, 4X4REVIEW.COM - A Tork Media, Inc. Publication

- - - - - - - - - - - - - - - - - - - - -

'74 FJ40 Land Cruiser

"Measure once, cut twice"
macabees34User is Offline
Bone Stock
Bone Stock
Posts:26


03/14/2007 10:44 AM  
HEY YOU GUYS FORGOT THE MOST IMPORTANT PART?! WHAT SHOULD I DO????? WITHOUT HAVING TO GIVE 3 ARMS AND A LEG TO THE PARTS DEALER.

oh ya!!!! From the macster!!!
SnoManUser is Offline
Lift & Lockers
Lift & Lockers
Posts:943


03/14/2007 2:28 PM  
quote:
Originally posted by macabees34
HEY YOU GUYS FORGOT THE MOST IMPORTANT PART?! WHAT SHOULD I DO????? WITHOUT HAVING TO GIVE 3 ARMS AND A LEG TO THE PARTS DEALER.


Okay without me going back to square one and rereading the whole thread, where are we at? What is it still doing and the state of exhaust system and are O2 sensors actually present or bypassed and what is it still doing as we have been all over the place with this one.

-------------------------- Visit the SnoMan at www.thesnoman.com
macabees34User is Offline
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Posts:26


03/19/2007 6:27 AM  
when i put a load on it, the engine [bartor]light comes on,[*:o] or when i kick it down to pass [^**^]someone the engine light comes on[xx(] too. is it the O2 sensor.[^^^][@#@][^%$][B)][barf3][barf2][barf][bag]

oh ya!!!! From the macster!!!
SnoManUser is Offline
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03/19/2007 9:22 AM  
And what is the code shown when it does this?

-------------------------- Visit the SnoMan at www.thesnoman.com
macabees34User is Offline
Bone Stock
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Posts:26


03/20/2007 4:25 AM  
ok scratch the engine light, i have bigger problems now! really rough idle and a knock that sounds like a super load spark knock and only does it when excelerating. does not do it i neutral or holding the brake with a load on it .

oh ya!!!! From the macster!!!
SnoManUser is Offline
Lift & Lockers
Lift & Lockers
Posts:943


03/20/2007 4:36 AM  
quote:
Originally posted by macabees34
ok scratch the engine light, i have bigger problems now! really rough idle and a knock that sounds like a super load spark knock and only does it when excelerating. does not do it i neutral or holding the brake with a load on it .


Try removing plug wires one at a time and find out if it goes away with one of them to localize the problem.

-------------------------- Visit the SnoMan at www.thesnoman.com
macabees34User is Offline
Bone Stock
Bone Stock
Posts:26


03/20/2007 8:35 AM  
OK "DAMN JACKIE" !!!!! IT WAS THE LEFT REAR PLUG, IT WAS LOSE!!!!!! FALSE ALARM, NEVER HAD THAT HAPPEN TO ME BEFORE. THIS TRUCK IS EDUCATING ME THE HARD WAY! I'VE NEVER RUN INTO THESE PROBLEMS BEFORE. AS FAR AS THE ENGINE LIGHT IT COMES UP AS THE EGR CODE BUT THE EGR WORKS PROPERLY.

oh ya!!!! From the macster!!!
SnoManUser is Offline
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Posts:943


03/20/2007 10:45 AM  
quote:
Originally posted by macabees34
. AS FAR AS THE ENGINE LIGHT IT COMES UP AS THE EGR CODE BUT THE EGR WORKS PROPERLY.


Okay, I have had a occasional EGR code light on my 89 for about 6 years now on my 89. It is being caused by a small pinhole leak in diaphragm for it. I tried replacing it several years ago but after market did not fit right and I was not going to pay dealer price plus it runs great and gets super MPG for its type so I am not going to worry about it. Mine only comes on sometimes at speed and never in town or during a emissions test when they had them as it always passed them.

-------------------------- Visit the SnoMan at www.thesnoman.com
macabees34User is Offline
Bone Stock
Bone Stock
Posts:26


04/10/2007 5:20 AM  
OK GUYS I HAD A BLOWN HEAD GASKET BETWEEN 3 AND 5 CYLINDER[:I]. REPLACED ALL THE GASKETS FROM THE HEADS UP. FIXED MY PROBLEM OF RUNNING LIKE CRAP[dance]. RE-TIMED IT NOW THE ENGINE LIGHT COMES ON BUT WILL GO OFF BY ITSELF. IT RUNS GREAT NOW AND IM NOT GOING TO WORRY ABOUT THE LIGHT. AS LONG AS IT GOES OUT BY ITSELF NOW[:D]. THANKS FOR ALL YOUR HELP AND NOW I CAN HELP OTHERS MAYBE[banger]. YOU GUYS WERE GREAT ALOT OF INPUT THANKS[:P][)][puff][puff2][:)] AGIAN.

oh ya!!!! From the macster!!!
webby4x4User is Offline
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Rock Star
Rock Star
Posts:2375


04/11/2007 12:52 AM  
This may be borderline off-topic, but I had an '86 Pontiac in high-school like this. Nothing wrong with the car, but that darned check engine light wouldn't go off. It turned out to be a short circuit that was causing it all along.

P.S. Glad we could help!

Rick

Rick Webster

Editor, 4X4REVIEW.COM - A Tork Media, Inc. Publication

- - - - - - - - - - - - - - - - - - - - -

'74 FJ40 Land Cruiser

"Measure once, cut twice"
SnoManUser is Offline
Lift & Lockers
Lift & Lockers
Posts:943


04/11/2007 3:37 AM  
quote:
Originally posted by webby4x4
This may be borderline off-topic, but I had an '86 Pontiac in high-school like this.


Get now I do feel old. My first car was 62 Plymouth and I owned about a half dozen of 60's era cars and trucks. Those things where built like tanks! I friend of mine had a 55 we souped up and ran around in. We beat the snot out of that car for close to a year and never broke it. It had a warmed up 265 V8 with headers and a 4.88 axle with a 4 speed.

-------------------------- Visit the SnoMan at www.thesnoman.com
macabees34User is Offline
Bone Stock
Bone Stock
Posts:26


07/26/2007 10:16 AM  
Well fellas its still running fine[banger] and im slowly replacing parts that are wore out or broken from the previous owner who must of just jumped in the truck and turned the key day in and day out[<>], and not keeping maintance up on it. But its a nice truck now and im glad ive got it. I would still like to find [bag]a 1974 to 1978 chevy or gmc 3/4 ton 4x4 long bed. I'd do some trading with this 1988 k2500 which is still in very good shape[)]. If you know of such an animal please let me know. Agian thanks for all your help[dance]!

oh ya!!!! From the macster!!!
webby4x4User is Offline
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Rock Star
Rock Star
Posts:2375


07/28/2007 1:12 PM  
Glad to hear it's working out well for you. I'll keep my eyes peeled for such an animal and will let you know if I come across something.

Rick

Rick Webster

Editor, 4X4REVIEW.COM - A Tork Media, Inc. Publication

- - - - - - - - - - - - - - - - - - - - -

'74 FJ40 Land Cruiser

"Measure once, cut twice"
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