I need to find my fuel filter and change it. - Page 2 - 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 07-27-2003, 12:44 PM   #11
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Quote:
Originally Posted by ssesc93
THanx for the help. I wish I could have found this out the easier way. It took me about three hours to find that thing. Well I can honestly say that I did it myself and replaced it. I feel GOOD!!!!!!. Now about the other thing acg ssei was talking about....... I will look at that soon. Do you know the exact location?
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Originally Posted by acg_ssei
But if your problem is that the car is hard to restart after shutdown (i.e. a warm restart requires lots of cranking), maybe your fuel-pressure regulator has sprung a leak. Find it on the end of the fuel rail on the engine, pull its vacuum line and see if gasoline comes out. If so, that'* your culprit.
On the top of the engine, by the TB attched to the fuel rail after the injectors.
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Old 07-27-2003, 12:55 PM   #12
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what does TB stand for? Is it turbo boost? Not being funny I just didn't know.
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Old 07-27-2003, 01:04 PM   #13
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TB == Throttle Body,

easy way to find your Fuel Pressure Regulator, On top of the engine is a peice of plastc, real big, says 3800 on it.
if you look near back side of this peice of plastic, on the drivers side, there is a black, metal cylinder, with a rubber hose on the top.
pull off this rubber hose for it is the vacuum line to the fuel pressure regulator
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Old 07-27-2003, 01:18 PM   #14
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Quote:
Originally Posted by Damemorder
pull off this rubber hose for it is the vacuum line to the fuel pressure regulator
Right. The round part of the pressure regulator is a diaphragm, with fuel on one side and vacuum on the other. If the diaphragm springs a leak, shutting down a running engine will leave pressurized gasoline seeping through into the vacuum side, and trying to restart the engine will snork liquid gas into the vacuum lines. Usually it takes a lot of cranking to get it cleared.

If the engine is allowed to sit until it'* stone cold again, it will restart normally for reasons I'm not sure of (maybe cold-start routines fire all the injectors anyway and ignore the regulator); it'* the bad warm restarting that'* the symptom here.

If you pull the vacuum line off (with the engine not running) and you find any liquid gas at all, the pressure regulator is history. Replacement is... (pause while Andy digs through his '96 Trans Sport file...) a little under fifty bucks for an AC-Delco unit, if the Bonneville'* is similar to the minivan'*.
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Old 07-27-2003, 01:25 PM   #15
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Ok, I am going out the house now to check. All this time I have been told it could have been my injectors, bad coil pack or fuel pump. I knew I should have asked you all first. I didn't know how to explain it well. I guess you all understand what I was talking about after all.
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Old 07-27-2003, 02:03 PM   #16
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Ok, I just got back in and the hose is dry so I guess I am ok. I started the car up and 3 times and there were no problems. Well let me say this, I finished the job yesterday evening at 7:30 pm and I was on my way out. I started the car and it turned over but it shut off. I did it again the second time and it stopped instantly. The third time the car said nothing. The fourth time it started and stayed on. I was guessing the fuel needed "bleeding". I then went on my way on my street for 15 min until I got on expressway. Before I get to the expressway my car cuts off. Now the car was hard to start again. It took me 4x'* to start the car before turning over again. Note: I had a 1/2 tank of gas during this. I then was 2 mins. from gas station when the car started again. I filled it up then was on my way out of station. I got to the turning lane for the e-way and the light turned green. Why my car cut off again?/ 2 cranks then it was started again. I got on e-way hoping to solve problem. I thought maybe it needed a blow out or needed to get use to the new fuel filter. Well the high speed must have helped because I haven't had any problems so far. I started the car this morning and it was fine. One more thing, is the RPM'* suppose to be @ 1000 on idle?
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Old 07-28-2003, 12:19 AM   #17
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Quote:
Originally Posted by ssesc93
Ok, I just got back in and the hose is dry so I guess I am ok.
Just so we're totally clear on this: There are _two_ round thingies with vacuum lines (at least on the supercharged engine) that you will discover when you pull the plastic cover off the engine. The largish one that you see in front of you in plain sight, with a pushrod extending out the bottom side, is _not_ the pressure regulator.

To get to the regulator, find the two lines of the fuel rail where they cross together side-by-side over the top of the intake between the front and rear injector banks. Follow the left (passenger'* side) line over the top of the engine to the back side; it will go into the pressure regulator, which is a small round thing mounted on its side, with the vacuum line coming out more-or-less straight up. Pull that vacuum hose off and verify that no gasoline comes out.
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Old 07-28-2003, 09:44 PM   #18
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I forgot to say my car had a hard time starting again today. I was on my way to lunch when it did this. I will check the lines lik you said acg right now!
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Old 07-29-2003, 11:41 AM   #19
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Quote:
Originally Posted by ssesc93
I forgot to say my car had a hard time starting again today. I was on my way to lunch when it did this. I will check the lines lik you said acg right now!
Well, it'* Tuesday; don't keep us in suspenders here... What did you find?
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Old 07-29-2003, 12:14 PM   #20
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Ooops! I got lazy yesterday. Sorry. Will check now. I will probrably be back later today for details for sure!
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