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1987-1991 Parley with regards to your 1987 to 1991 Bonneville, Olds 88 or Buick Le Sabre Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 08-01-2007, 08:40 PM   #21
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Quote:
Originally Posted by jr's3800
I agree with Eric... Make sure you replace the fuel filter first... I can't tell you how many of these I have seen plugged up and this left me amazed that the car could even run or start
Yeah, the fuel filter seemed to be aged about the same as all the lines down there. Does it help improve the fuel pressure a lot if it'* changed in this situation?
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Old 08-01-2007, 08:42 PM   #22
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It depends on how dirty it is. It is a cheap part that usually isn't that tough to change.
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Old 08-01-2007, 08:44 PM   #23
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If its never been changed it can be plugged up and strain the fuel pump and cause low fuel pressure.... This is the cheapest first step I'd try.. Its important to have both Pressure and Flow... Mine was all original at 110k... Had AC Delco on it... I couldn't even blow through it.. It was crazy...

after the replacement the car started better, idled better and ran a bit better.. And for $10 its a decent place to start... I haven't seen to many Fuel pressure regulators fail on the Vin C 3800'*..

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Old 08-01-2007, 08:48 PM   #24
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Should start something like this... I have seen some that are a bit better or faster to start than mine..



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Old 08-01-2007, 09:00 PM   #25
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There is a Range for pressure... The range on the Vin C engine is 37-41 PSI... You should fall into that area... I have seen some as good as 45 with no Vac applied to the regulator.. And as low as 35 or so at dead idle.. as long as you fall into that area and see the pressure go up as the vac drops and the pump keeps up then you should be ok..

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Old 08-01-2007, 09:14 PM   #26
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Quote:
Originally Posted by bastard
It depends on how dirty it is. It is a cheap part that usually isn't that tough to change.
Yeah, I understand that it shouldn't be hard to change but that sucker was rusted together or something was preventing me from loosening it.

Quote:
Originally Posted by jr's3800
If its never been changed it can be plugged up and strain the fuel pump and cause low fuel pressure.... This is the cheapest first step I'd try.. Its important to have both Pressure and Flow... Mine was all original at 110k... Had AC Delco on it... I couldn't even blow through it.. It was crazy...

after the replacement the car started better, idled better and ran a bit better.. And for $10 its a decent place to start... I haven't seen to many Fuel pressure regulators fail on the Vin C 3800'*..
I'd imagine that it couldn't hurt it. Even if it helps it start up by a few seconds less, i'd be very happy.


Quote:
Originally Posted by jr's3800
Should start something like this... I have seen some that are a bit better or faster to start than mine..
Yeah, that sounds just like my ignition except that it takes much longer before it turns over. I'll have to record what it sounds like tomorrow morning when I start it.

Quote:
Originally Posted by jr's3800
There is a Range for pressure... The range on the Vin C engine is 37-41 PSI... You should fall into that area... I have seen some as good as 45 with no Vac applied to the regulator.. And as low as 35 or so at dead idle.. as long as you fall into that area and see the pressure go up as the vac drops and the pump keeps up then you should be ok..

Thanks for the information. I remember reading that it should be somewhere in that area.


Really, thanks for all the help guys. Hopefully in the future I'll be knowledgeable to help other noobs with their car troubles.
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Old 08-01-2007, 09:42 PM   #27
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Just taking some already good advice and adding some to it.

Quote:
Originally Posted by Alibi
-Transmission fluid ( http://www.lesabret.com/phpBB/viewtopic.php?t=2945 ) be sure to change the filter as well, flushing is recommended, be sure to do this EVERY 12-15k

-PCV valve ( http://www.lesabret.com/phpBB/viewto...&highlight=pcv )

-Air filter (NEVER use Fram) purolator is a good paper filter brand, or if you have the extra money, K&N is always fully recommended

-plugs (ALWAYS use AC DELCO) yes, Delco plugs are excellent, but there are options, NGK is just as good a plug in these engines, TR55s are cheap and fully recommended, don't ever buy bosch

-wires (spend more than $20)recommended wires are napa belden, autolite professional and of course, ac delco. all are equally as good

-fuel filter (should be done every 15k miles)purolator recommended, not sure on fram, but nearly all their filters suck anyways, so be safe

-oil (hopefully thats been kept up with...)for ultimate protection and extended intervals (up to 7,500mi) use Mobil 1 or Pennzoil Platinum oil with a delco or purolator PureONE oil filter

-check brakes, replace brake fluid (every two years)

-radiator flush and fill (every two years)having it done professionally is easiest, but rather easy to do yourself. be sure to use a flushing chemical such as prestone radiator cleaner to break loose any crud clogging your neglected cooling system

-clean the injectors (Lucas or Chevron Techron in fuel)do this every 3k miles

-Clean the intake and IAC ( http://www.lesabret.com/phpBB/viewtopic.php?t=4054 ) this is great advice. clean the MAF sensor around every 20k miles
ALSO, not mentioned here, 02 sensor. Replace this every 30k. Use a delco or a denso. DO. NOT. USE. BOSCH.

keep it maintained and you'll be surprised how long it will stay on the road
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Old 08-01-2007, 11:38 PM   #28
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Thanks for the advice. I've got a video of it starting up after sitting for not very long and in the morning I'll take one of it starting up cold. I'll post both videos then.

I'll take a look into the o2 sensor as well.

The cooling system isn't exactly neglected but I haven't flushed it or anything.
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Old 08-02-2007, 12:48 AM   #29
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Quote:
Originally Posted by wjcollier07
Just taking some already good advice and adding some to it.

Quote:
Originally Posted by Alibi
-Transmission fluid ( http://www.lesabret.com/phpBB/viewtopic.php?t=2945 ) be sure to change the filter as well, flushing is recommended, be sure to do this EVERY 12-15k

-PCV valve ( http://www.lesabret.com/phpBB/viewto...&highlight=pcv )

-Air filter (NEVER use Fram) purolator is a good paper filter brand, or if you have the extra money, K&N is always fully recommended

-plugs (ALWAYS use AC DELCO) yes, Delco plugs are excellent, but there are options, NGK is just as good a plug in these engines, TR55s are cheap and fully recommended, don't ever buy bosch

-wires (spend more than $20)recommended wires are napa belden, autolite professional and of course, ac delco. all are equally as good

-fuel filter (should be done every 15k miles)purolator recommended, not sure on fram, but nearly all their filters suck anyways, so be safe

-oil (hopefully thats been kept up with...)for ultimate protection and extended intervals (up to 7,500mi) use Mobil 1 or Pennzoil Platinum oil with a delco or purolator PureONE oil filter

-check brakes, replace brake fluid (every two years)

-radiator flush and fill (every two years)having it done professionally is easiest, but rather easy to do yourself. be sure to use a flushing chemical such as prestone radiator cleaner to break loose any crud clogging your neglected cooling system

-clean the injectors (Lucas or Chevron Techron in fuel)do this every 3k miles

-Clean the intake and IAC ( http://www.lesabret.com/phpBB/viewtopic.php?t=4054 ) this is great advice. clean the MAF sensor around every 20k miles
ALSO, not mentioned here, 02 sensor. Replace this every 30k. Use a delco or a denso. DO. NOT. USE. BOSCH.

keep it maintained and you'll be surprised how long it will stay on the road
All very good information to add onto mine

...and I did forget to mention the O2... those buggers clog up from carbon deposits after a while. I've tried cleaning them with carb cleaner just to see if they last a tiny bit longer, but its just as easy to replace.
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Old 08-02-2007, 01:15 AM   #30
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heres another starting vid of a normal starting LN3

dont mind the dirty engine, that was before it was cleaned.

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