Runs then slows then stalls - Page 5 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 06-16-2009, 06:14 PM   #41
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when the code PO108 poped up the Adv.guy wrote the codes on a sheet of paper-
stating MAP/BARO circuit high input - does that still mean MAP SENSOR ?

Also a code for PO753-solenoid A circuit and
PO758 shift solenoid B circuit posted to the code during his inspection,does this have a effect on my driving where are those sensor?
Called a friend/Saturn mechanic he asked me to check for spark on all 6 plugs and to check pressure of fuel -enough to barely hit radiator! possibly not enough -fuel pump!
sorry for so many questions! thanks Robert
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Old 06-16-2009, 08:41 PM   #42
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took back the ing.coil to adv.auto wouldn't take back the ing.module,
bought a MAP sensor replaced the PCV also tried to start numerous times, now i'm getting no fuel on the rail, what the heck, this is so frustrating, do you think i've finally worn out the pump ?
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Old 06-16-2009, 08:43 PM   #43
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the other nite i checked the fuel pump relay, and all the other elect.sensors,
double checked to see if in right spot, yes ,
whats your thoughts
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Old 06-16-2009, 10:26 PM   #44
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Something tells me you have a vacuum leak somewhere. To many odd codes.
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Old 06-17-2009, 09:07 PM   #45
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I have replaced all the small connections on the vacuum hoses,
charged the battery all day, came home to start,cranking over but not running
i sprayed a little starting fluid in throttle runs for 2 secs, not getting ANY fuel in fuel rail!
i've pulled both connections at rail and cranked- no fuel, i've checked the connections at the fuel filter,
leaks a little,can i unplug that line to see if fuel is being sent?

changed MAP last nite i feel that will fix the miss problem, rough idle, but why am I getting No fuel to the rail? sensors and relay all checked ok.
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Old 06-17-2009, 09:11 PM   #46
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It ran good for 10-12 mins SUNDAY then stalled and then wouldn't start up!!!
all this happened with NO air filter, no air box or rubber boot -open throttle
what the crap??
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Old 06-17-2009, 09:57 PM   #47
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You can remove the filter to see if fuel is moving at that point. Just be careful. Can you here the fuel pump running? Have you checked your security light? Is it on or flashing when the car is running?
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Old 06-17-2009, 10:33 PM   #48
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really haven't had it running that much,
usually see the sec.lite come on as car is starting
The check engine lite has been on since 100,000miles

I've used my key and my wifes key at different times
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Old 06-17-2009, 10:36 PM   #49
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is there any problems with the sending unit,or just fuel pump
its just so hot down here to work on cars ,i work out side and at 6 pm i'm just done- i get a urge for a second,
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Old 06-17-2009, 10:43 PM   #50
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The sender is for the fuel gauge. You really need to find out the fuel pressure and if the pump is working.
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