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I am trying to track my loss of HP problem. At high RPM's 6000+ I lose alot of power. As my RPM's climb to around 4000 or so I start to hear what sounds like a buzzing or rattling. I think this is coming from outside of the car. I figure it is one of 2 things, The exhuast or the fuel pump. In the past the fuel pump has made some funny noises after the car has been turned off then back on a few minutes later. The other problem, probably related is when I start the car after it has sat for a few hours it bucks as I start to excelerate. If I keep my foot pressure even the car will start to accelerate then hesitate almost like its gonna stall, then recover all of the sudden. What can all this be? I'm looking to rule out or narrow down possible causes as I've already spent $400 at the dealership to fix a CEL for the EGR system. (they did a "service"  )T hanks for any and all help.
hunter green 96 mystique mtx, sabb side markers deep tints
car bra., K & N filter, hyper white low beams, after market fogs, JVC Kameleon head unit, 600 watt amp with 2 10" kicker subs, soon to come new rims
New adition 01/11/2002 The original 95SE in Midnight Red all the toys including traction control
Fog light mod, lightmoonroof switch from a focus, power antena (still wiring it up) post 98 sail panels, new water pump , Bosch quad plaitnum plugs, and a new Cat.
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Joined: Jul 2001
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TTT this is killin me I tell ya.
hunter green 96 mystique mtx, sabb side markers deep tints
car bra., K & N filter, hyper white low beams, after market fogs, JVC Kameleon head unit, 600 watt amp with 2 10" kicker subs, soon to come new rims
New adition 01/11/2002 The original 95SE in Midnight Red all the toys including traction control
Fog light mod, lightmoonroof switch from a focus, power antena (still wiring it up) post 98 sail panels, new water pump , Bosch quad plaitnum plugs, and a new Cat.
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Joined: Jun 2000
Posts: 2,848
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well have you tried replacing the fuel pump? Or the fuel filter?
1999 Silver Frost SVT
#609 of 2760
Born on 12/3/98
KKM Intake
Removed Resonator
35% Window Tint all around
Tinted Tail Lights
ElKy Mesh Grilles
HID
Dyno'ed at 175.3HP/155.5TQ
"How much must I live through just to get away..."
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Joined: Jul 2001
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New fuel filter and I keep on thinkin it is the fuel pump. I just want to narrow it down before sending it off to Ford so I don't continue to get rapped. :rolleyes:
hunter green 96 mystique mtx, sabb side markers deep tints
car bra., K & N filter, hyper white low beams, after market fogs, JVC Kameleon head unit, 600 watt amp with 2 10" kicker subs, soon to come new rims
New adition 01/11/2002 The original 95SE in Midnight Red all the toys including traction control
Fog light mod, lightmoonroof switch from a focus, power antena (still wiring it up) post 98 sail panels, new water pump , Bosch quad plaitnum plugs, and a new Cat.
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Joined: Jun 2002
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the timing belt could be off a tooth or 2, also your crank shaft sensor could be going...that is 2 other possibilities, not saying it deffiantly is but it is something to check it out...
Dougan
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Posts: 1,537
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mbb41,
Year, Model, and Mileage plase...
Pete... 98.5 SE Sport Duratec ATX (P66L) Black Clearcoat on Greystone DOB 11/21/1997 DOP 12/25/1997 PIAA 510 Super White Driving Lights SVT CAT-BACK EXHAUST (No Resonator) DiabloSport Chip (LPQ4) - Engineered To Raise Hell Too many other mods to list... Sounds sweet, runs quick... Crazy Horse Dyno @ 121.4 WHP/129.6 TQ
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Joined: Jan 2002
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http://www.contour.org/forums/ultimatebb.php?ubb=get_topic;f=40;t=002344 Could be?
2000 Contour SE V6 ATX (White)
K&N
Moose fixed finally!
Dunlop SP Sport A2's
Sylvania Silver Stars (low and hi)
Lots more coming!
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My 95 Contour with 76000km's on the clock. Just short of 50000m. Info should be in sig below. Thanks
hunter green 96 mystique mtx, sabb side markers deep tints
car bra., K & N filter, hyper white low beams, after market fogs, JVC Kameleon head unit, 600 watt amp with 2 10" kicker subs, soon to come new rims
New adition 01/11/2002 The original 95SE in Midnight Red all the toys including traction control
Fog light mod, lightmoonroof switch from a focus, power antena (still wiring it up) post 98 sail panels, new water pump , Bosch quad plaitnum plugs, and a new Cat.
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Joined: Jul 2001
Posts: 803
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OP
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Posts: 803 |
hunter green 96 mystique mtx, sabb side markers deep tints
car bra., K & N filter, hyper white low beams, after market fogs, JVC Kameleon head unit, 600 watt amp with 2 10" kicker subs, soon to come new rims
New adition 01/11/2002 The original 95SE in Midnight Red all the toys including traction control
Fog light mod, lightmoonroof switch from a focus, power antena (still wiring it up) post 98 sail panels, new water pump , Bosch quad plaitnum plugs, and a new Cat.
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Joined: Jul 2001
Posts: 299
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smell the rubber hose going into the fuel pressure regulator (check the intake rebuild in the faq for labled pictures and location), if it smells like gas, or if gas dribbles out when you take it off, replace it immediately. This could also cuase a bad idle.... EDIT: ha ha, i should of proofread...by "replace it" i mean the FPR, not the hose, the FPR is $44 from autozone....i'm in the process of narrowing down my fuel presssure leak too...i have about 3 topics going right now...  mine happens as soon as you turn the car off though. I wish my pump made a lot of noise, it would sure save me time.
Silver 1998 Mystique LS (v6)...ATX  Removed Emblems, limo tint, painted calipers. Premier P630 HU with 4 Pioneer TS-A6895 Speakers with 10' Sony sub (yeah i know, i'm cheap) Commando 501-S Alarm
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