- #95 of 155
-
Re: 95 Astro stalling issue [pwr2020]
by schooter
-
Mar 11, 2008 (1:23 pm)
-
|
|
Replying to: pwr2020 (Mar 11, 2008 11:12 am)
Should I check the fuel pressure first to determine whether it is the fuel pump? Will simply checking the fuel pressure give me enough to determine a pump problem? What is the normal fuel pressure threshold? Sorry, about all the questions...I just want to make sure before I tear into it.
|
- #96 of 155
-
Re: 95 Astro stalling issue [schooter]
by pwr2020
-
Mar 11, 2008 (1:58 pm)
-
|
|
Replying to: schooter (Mar 11, 2008 1:23 pm)
Yes, you should check fuel pressure before installing a new pump. The tolerance range (ignition on, do not start the engine) should be between 54 and 61 psi and hold after you turn the key off for at least 2 minutes; (50 psi at end of 2 minutes is acceptable). A fast loss in pressure would suggest a bad check ball inside the pump and insufficient pressure would be a bad pump all together. These rotary pumps are famous for going out. If everything checks out, I would suspect a bad fuel pressure regulator or pulsator valve.
Does this help?
|
- #97 of 155
-
2003 Astro, Missfire problem
by grey1956
-
Mar 14, 2008 (4:43 pm)
-
|
I have a 2003 Astro.
When I am excellerating to 70 mph to get on the express way, I get a loss of power and a flashing check engine light.
The code is spark plugs missfiring. I have changed the rotor, cap, wires, plugs, air and fuel filter, max air flow sensor. The problem is still there. I even took it to a repair shop and had them run the computer and check it out for 3 days. They gave it back and said they could not find the problem.
Please help!!!!!
|
- #98 of 155
-
Re: 95 Astro stalling issue [pwr2020]
by jorja
-
Apr 07, 2008 (4:45 am)
-
|
|
Replying to: pwr2020 (Mar 11, 2008 1:58 pm)
After reading about this problem, I would like to know if it is possible that my 97 Astro Van is in need of a another pump as well. I replaced the fuel pump in this van in Sept 06 and everything has been fine until a few months ago. Then I got a gremlin. This van does silly things, like chuck and burp whenever it fells like it and then races like crazy at the same time. It does not matter if the engine is cold or hot or even what day it is. It acts up when it feels like it. When it is acting like this, I loose the reading on the gas gauge. The needle goes down to empty and then when the van straightens itself out, perhaps after an hour or so (or ten minutes), the gas gauge reads correctly.Replaced already have been plugs, wires, distributor cap, rotor, fuel filter, and coil. All to no avail. Please help.
|
- #99 of 155
-
Re: 95 safari no start problem [crzmn1]
by shortline28
-
Apr 26, 2008 (6:08 am)
-
|
|
Replying to: crzmn1 (Dec 23, 2006 3:14 pm)
I have a 1994 AWD Safari with about 201,000 miles on it, and it has EXACTLY the same problem : It turns over, will not start, and "Everything works, except for the fuel pump, headlights, and the interior lights.......IT WOULD BE VERY HELPFULL IF YOU COULD TELL ME WHAT YOU DID TO FIX!!??
|
- #100 of 155
-
Re: 95 Astro stalling issue [schooter]
by waterski1
-
May 14, 2008 (8:12 pm)
-
|
|
Replying to: schooter (Mar 07, 2008 3:09 pm)
Hello Schooter,
My 95 GMC Safari is doing the EXACT same thing now for quite awhile and my mechanic can't find out what the problem is. Changed the plugs, wires, rotor, the spider injection unit, etc. Have NOT changed he fuel pump as yet - fuel pressure is up to where it should be.
what did u find fixed the problem??? thanks for your help!!
Jerry
|
- #101 of 155
-
Re: 95 Astro stalling issue [waterski1]
by schooter
-
May 15, 2008 (5:32 am)
-
|
|
Replying to: waterski1 (May 14, 2008 8:12 pm)
I'll have to admit I have dragged my feet on fixing the problem. However after reading some of the forums I really am convinced it is a fuel pump ( ethanol ) issue. From my understanding ethanol is hard on the older and a lot of aftermarket pumps. If this is the problem I would suggest finding out what pumps are "ethanol proof" before making a purchase.
I'll be sure to post it, whenever I am able to get around to fixing the problem.
If you beat me to the draw, Please fill me in. Thanks!!!
|
- #102 of 155
-
Re: 95 Astro stalling issue [schooter]
by waterski1
-
May 15, 2008 (7:51 am)
-
|
|
Replying to: schooter (May 15, 2008 5:32 am)
I'll try to remember to let you know. I'm new to this site. Also, for my vehicle, it seems tohappen right after I fill up with gas at Sheetz. I know I have a hole near the top of the gas tank but not sure y that would make a difference! Also, when the problem starts - if I put the lights on or even blow the horn - it almost shuts the car down. But the whole time the fuel pressure is up and there's plenty of spark.
Jerry
|
- #103 of 155
-
Re: 2003 Astro, Missfire problem [grey1956]
by kerijo
-
May 20, 2008 (3:19 pm)
-
|
|
Replying to: grey1956 (Mar 14, 2008 4:43 pm)
I'm having the exact same problem with my van, also a 2003 Astro. Did you ever figure it out?? Does seem to be better when I add fuel injector cleaner, maybe clogged injectors? The problem always comes back and is worse this time around. I'm right around 123K miles now. Any advice is greatly appreciated:)
Also...I have a "clunk" as I make left turns. Tie rod end? Ball joints were replaced a few years back under a recall. Any ideas on this??
|
- #104 of 155
-
Re: 2003 Astro, Missfire problem [kerijo]
by waterski1
-
May 20, 2008 (3:36 pm)
-
|
|
Replying to: kerijo (May 20, 2008 3:19 pm)
Well, I'm not a mechanic, but here's a few thoughts from my 1995 Safari w. 226k on it and a 02 Astro w. 127k on it. No, I haven't fixed the problem and the other guy i was talking w. didnt either. I've also done the dry gas idea and that helped one time or so i thought. Since its only when i fill it up or close to full, being there's a hole in the top of the tank, it seems that has something to do with it! My mechanic friend is gonna try the fuel pump and see if that helps. I've changed it 100k ago and don't feel like doing it again!!
As for the clunking, it sure sounds to me like the transfer case. If its a repeated clunking, like a machine gun rate, then its probably the transfer case which is behind the transmission and sends the power to the AWD front and rear. I guess if ur's isnt an AWD, then thats not the problem either!! Also, if its a one time clunk on a turn that may be something else.
Any thoughts??
Jerry
|
![[F]](http://a332.g.akamai.net/f/332/936/12h/www.edmunds.com/media/townhall/webxicons/site.gif){kind=small}
Forums
Vans & Minivans 
