Mechanics

CHEVY IDLE PROBLEMS

1995 Chevrolet Astro

Engine Performance problem
1995 Chevy Astro 6 cyl Two Wheel Drive Automatic 120, 00 miles

hi I have a 95 astro van that is really making me mad it idles rough even while driving.I have put my scanner on it also auto zones scanner on an both say no codes, I have replaced plugs wires cap and rotor, cleaned the iac, checked vacuum lines, and checked fuel pressure, and still runs rough, now im tinking ing module?Crank sensor or the computer all together? Any help would be great next step is I stick of TNT and a match lol
Avatar
God54901
January 26, 2010.



Hello,

Ok, with that year most fuel related problems won't set a code.

First if you haven't already, even if you have please double check the firing order....


http://z.about.com/d/autorepair/1/0/g/_/41894088.gif



I have come across this to many times and the people have checked and double check and still crossed wires.

If firing order is correct then next step would be to check or just replace the Injector Assembly. I say replace cause it is located under the intake.


http://partimages.genpt.com/partimages/647264.jpg




http://www.2carpros.com/forum/automotive_pictures/188069_fuelinjection95astrolocation1_1.jpg



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Obxautomedic
Jan 26, 2010.
Is there any way you can send me that exploded view or the link to it? I desperately need it.

Tiny
Kobra000
Feb 22, 2010.
Sorry for delay in posting back. Little boy sick and had to take him to a specialist.

Anyway I am at work right now so when I get home this evening I will post the exploded view and email it to you.

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Obxautomedic
Feb 26, 2010.
Here is the exploded veiw.....


http://www.2carpros.com/forum/automotive_pictures/188069_95astrospiderassembly_1.jpg



Also look for an email of same

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Obxautomedic
Feb 26, 2010.
Sir I owe you a case of whatever your favorit beer is that pic will undoubtedly save me alot of frustration and trouble.

Thank you ever so much for sending it too me.

Keith.

Tiny
Kobra000
Feb 27, 2010.
No Problem, let me know if you need anything else.

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Obxautomedic
Feb 28, 2010.
Well I got the new injection in but I have thus ran into two problems. One I think being huge.
1: I have no information telling me where each injector plug/poppet valve goes where no numbers or letters nothing.I dont want to blindly start plugging them into the wrong port. I was wondering if anyone has a detailed diagram/layout showing where each injector plugs into its proper port
2 on the electrical connector that attaches to the top of this assembly I found some black sticky goop that almost completely coats the entire connector. Is this some means of protection/insulation for the connector? And if so can anyone tell me what it is and where to find it and if it is critical to the correct re installation of the new injection system?
Any and all answers or help is greatly greatly appreciated.
Thanks

Keith
working on a 1995 Chevy Astro with bad injection problems

Tiny
Kobra000
Mar 8, 2010.
Hey Keith,

It is simple once the assembly is installed there should be 3 lines on each side. And they go as they are, the one one either side toward front of engine go in socket at front of engine the ones in middle go to middle socket and of course the ones toward rear go the the rear sockets.

And I believe the tar like coating is a factory thing and doesn't have to be placed on new assembly.

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Obxautomedic
Mar 8, 2010.
I got everything back in and its looking good, with no leaks or odd explosions of any sort lol. But now im at the stage where I need to bolt the upper intake plenum back on and I need the torque specs and bolt tightening sequence badly

again any information would be greatly appreciated and all the info from everyone thus far is thanked for a million times over.

Keith

Tiny
Kobra000
Mar 11, 2010.
Hey Keith,

Guess I should have posted the specs also before you had to ask for them. Anyway, here they are....

Lower Intake Torq is 35 foot pounds


http://www.2carpros.com/forum/automotive_pictures/188069_4_3lowerintaketorqseq_1.jpg



Upper Intake Torq Is 10 foot pounds


http://www.2carpros.com/forum/automotive_pictures/188069_4_3upperintaketorqseq_1.jpg



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Obxautomedic
Mar 11, 2010.
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