RE: 1994 suburban starts then stalls out

Printable Version

Chevrolet >> Chevy Trucks, Vans & SUV's >> Suburban >> RE: 1994 suburban starts then stalls out

Page: <<   < prev  1 [2]

Login Message << Older Topic   Newer Topic >>

RE: 1994 suburban starts then stalls out - 2/23/2007 7:21:32 PM    dalkins1   Posts: 12 Joined: 8/27/2006 Status: offline Still fighting with this issue,,,,,,have now changed the ignition lock cylinder to go along with all the other parts. Suburban runs fine,,,but about every other day it will start then quickly stall,,,it will start and stall about 2-4 times before it will stay running fine. I have gotten another code (number 35) IAC valve again,,,,,I have put a new one it so not sure what is going on. I also wiggled numerous wires while it is running to see if I can locate a loose connection. I am stumped at this time,,,,parts I have changed are: dist cap, rotor, ignition module, fuel filter, fuel pump relay, oil pressure switch, plugs, ignition switch and lock cylinder. Golfer I finally have an answer to your question of the dash lights being on when it stalls,,,,they are not on when it stalls??? not sure what this means? Does anybody think it could be something in the run circuit that loses power when key is realeased just after it starts? Pleas offer any suggestions I am at a loss at this point, Thanks Dave _____________________________ 1995 z71, 134k,automatic & 1994 suburban 4x4 211k (in reply to dalkins1) Post #: 11

RE: 1994 suburban starts then stalls out - 2/23/2007 9:19:12 PM    golfer   Posts: 610 Joined: 10/8/2006 Status: offline Ok lets review... - when the vehicle first starts ( cold ) it runs fine and doesn't stall. - After it's been running a while ( hot ) it stalls and hard to start. - when it does stall there are no lights lit on the dash .... is this correct so far? When it does stall and the radio is playing will it go off ? (in reply to dalkins1) Post #: 12

RE: 1994 suburban starts then stalls out - 2/24/2007 1:29:16 AM    RonH   Posts: 415 Joined: 1/31/2007 Status: offline It really could be a fuel pump.  Sometimes they will run fine for a long or short time and then just quit pumping.  Turning the key off and on a couple of times until you hear it running again will get it started again, and then it will run for a while just fine before it quits again.  Seems like after sitting overnight or for several hours, it runs good for a while before it starts acting up. (in reply to dalkins1) Post #: 13

RE: 1994 suburban starts then stalls out - 2/24/2007 9:54:07 AM    dalkins1   Posts: 12 Joined: 8/27/2006 Status: offline Golfer,,,it has since stall out twice when it is first started in the morning????? It stalls out so fast after it starts that I am not sure about the radio. A funny thing about this suburban, I have never been able to  hear the fuel pump running, I have owned it for about 6 weeks now, I think I bought somebodys headache. With my limited knowledge I am thinking its maybe fuel pump or something in the ecm not giving a signal sometimes after it starts? Do you think I am heading in the right direction? Thanks Dave _____________________________ 1995 z71, 134k,automatic & 1994 suburban 4x4 211k (in reply to RonH) Post #: 14

RE: 1994 suburban starts then stalls out - 2/24/2007 7:40:37 PM    golfer   Posts: 610 Joined: 10/8/2006 Status: offline Let's never mind about an electrical problem and I doubt it's the ECM. The engine needs three things for it to start and run... 1 - air 2 - fuel 3 - spark You can try having someone turn the key to "on" for the count of 5. During this time you're outside the vehicle listening for the hum from the fuel pump. There is a  magnetic pickup and an ignition module inside the distributor that the ECM reads to control the timing of the spark and the injectors. You could also have a problem with the fuel pressure regulator. < Message edited by golfer -- 2/24/2007 11:35:29 PM > (in reply to dalkins1) Post #: 15

Today's Posts
Most Active Topics
Make A Donation
Forum Rules & FAQ
RSS Feeds

Chevy Prices

Chevy Forums
Monte Carlo
Corvette
Camaro

Top 10 Posters
zx1100f1 2429 biglg 2166 73shark 2143 eurogoldls 2031 engine2 1707 tahoe07 1139 northey87 855 shawnvw 832 golfer 610 malibumaxxss 598

New Vendors
Truxedo
AMSOIL - Performance Oil Technology
K&N Engineering, Inc.