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1984 911 M491 Turbo Look
Join Date: Jun 2009
Location: Rocklin, CA
Posts: 47
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Replacing Fuel Pressure Regulator - a DIY job?
How labor intensive is this? Dealer wants $640 labor
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10-23-2009, 10:29 AM
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Registered
Join Date: May 2002
Location: St Louis
Posts: 4,211
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Is this a DME car? I have changed all those hoses but I had the intake off with the engine in the car.
Does that $640 include an engine drop? How do they know it is bad?
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Rick 88 Cab |
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10-23-2009, 03:09 PM
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1984 911 M491 Turbo Look
Join Date: Jun 2009
Location: Rocklin, CA
Posts: 47
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Yup, DME car. The fuel pressure surges from 33psi to over 100psi, and the car dies. Vacuum lines checked and OK. Ideas?
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10-23-2009, 11:10 PM
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1984 911 M491 Turbo Look
Join Date: Jun 2009
Location: Rocklin, CA
Posts: 47
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c'mon guys, need some input on the DIY'ness of this job!
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10-25-2009, 04:42 AM
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Somatic Negative Optimist
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Maybe a Bentley Carrera Repair Manual would show the procedure.
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1980 Carrerarized SC with SS 3.2, LSD & Extras. SOLD! 1995 seafoam-green 993 C2, LSD, Sport seats.  Abstract Darwin Ipso Facto: "Life is evolutionary random and has no meaning as evidenced by 7 Billion paranoid talking monkeys with super-inflated egos and matching vanity worshipping illusionary Gods and Saviors ". 
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10-25-2009, 09:07 AM
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Registered User
Join Date: Aug 2010
Posts: 9
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Did you ever get your answer? I am facing the same issue and it appears to me after fooling around with this all morning that maybe you DO have to remove the engine to get at this regulator...I've been looking at this with my wife's cosmetic mirror to try to see well enough:-)
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05-08-2011, 03:10 PM
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Registered
Join Date: Oct 2008
Location: Nash County, NC.
Posts: 8,564
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The fuel pressure regulators are on the front corners of the fuel injection, right and left.
The injection comes off easily enough, in 2 sections plus the small parts. If youre going to do this, I suggest you also replace the hoses on the main feed from the filter to the hard line and then the 2 hoses from the hardline to each fuel rail. The piece is about $500 but you can use your old one and replace the rubber pressure lines/ Any way, pull the air filter and airflow sensor and it gives you a lot more room on the top to work What you ultimately want to replace is the vacuum pods on the front corners of the injection and the while youre there, replace the fuel lines. Be careful of the flywheel sensors wires, they crush under the manifold if they get in the way. I know from experience.... Bruce |
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05-08-2011, 03:23 PM
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Mo money = mo parts
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The damper is behind the air filter, the pressure regulator is behind the heater blower motor. The damper could probably be replaced with the motor in place removing the air filter as Bruce suggested, I think the pressure regulator would be more difficult.
If I was going to replace the regulator without removing the motor, I would remove the fan motor, air flow and air filter but it's going to be really tight and you are going to limited or no sight, minimal clearance and reaching way in the back. Is it DIY? Well that really depends on you and your skills. If you do decide DIY, then Bruce is giving good advice and address a few other things (rubber parts) while you are in there.
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Greg 86 Coupe (stock - pretty much like Butzi designed it) - gone, but not forgotten 65 Ducati Monza 250 & 66 Monza Junior (project) "if you are lucky enough to own a Porsche, you are lucky enough" |
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05-08-2011, 06:22 PM
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Registered
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It probably CAN be done w/out dropping the engine (at least, I would try it on my '89).
BEST! Doyle
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Recording Engineer, Administrator and Entrepeneur Designer of Fine Studios, Tube Amplifier Guru 1989 Porsche 911 Carrera Coupe 25th Anniversary Special Edition Middle Georgia |
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05-09-2011, 04:29 PM
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Registered
Join Date: Oct 2004
Posts: 15,612
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I think Draco did this w/out an engine drop. Ask him how he did it. I waited until the engine was out, and preemptively changed the hoses as fp regulator at the same time. I would have no clue how to do it without at least removing the intake manifold on the left side.
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05-09-2011, 04:33 PM
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ME 262 (SOLD)
Colibri
Gas Mizer
Mileage King
Dog Bus
1986 Porsche 911
