Page 1 of 1 1
Topic Options
#2260052 - 01/24/08 11:37 PM Chrysler....low oil pressure when brake is applied??
RacerXI Offline
Post Master Sr


Registered: 07/04/00
Posts: 8900
Loc: Dothan, AL
The woman owns a PT cruiser. Recently her oil pressure light started coming on just as she hit her brakes. It has all of 55K miles. After some searching, this seems to be a common issue with PT's. It seems there are 3 scenarios at hand here.
1. The pressure sending unit is bad or going
2. The oil pump itself is bad or going
3. There is a "sludge" issue

Has anyone had experience with this? I did some searching here and there and seems the 1st plan is to remove the sending unit and attach a gauge to read the pressure at idle and 3K rpm. That'll help to determine 1 or 2. Any ideas or thoughts?

See link below for references.
http://www.ptcruiserproblems.com/chrysler/pt_cruiser/pt_cruiser_owner_complaints.htm
_________________________
Rodney
04 S2000

Top
Videos
#2260068 - 01/24/08 11:43 PM Re: Chrysler....low oil pressure when brake is applied?? [Re: RacerXI]
ReplicaR Offline
Post Master Sr


Registered: 05/26/06
Posts: 5985
Loc: E.E.B.
Possibly poor baffle design in the oil pan, but highly unlikely.
_________________________
'94 Mustang GT

Acceleration.... \:\( -------+-- \:\)
Handling......... \:\( -------+-- \:\)
Speed............ \:\( ------+--- \:\)

Top
#2260399 - 01/25/08 02:04 AM Re: Chrysler....low oil pressure when brake is applied?? [Re: RacerXI]
ewraven Offline
Post Master Supreme


Registered: 03/30/02
Posts: 27495
If it is sludge related, I recommend a full cleaning cycle with http://www.auto-rx.com. That stuff worked wonders on my Dakota.
_________________________

Top
#2260420 - 01/25/08 02:12 AM Re: Chrysler....low oil pressure when brake is applied?? [Re: ewraven]
Relix Offline
Post Master Supreme


Registered: 07/10/03
Posts: 16256
Loc: 640 acres of desert
Is the oil filled to the correct level?
_________________________
Don't feed the troll BigAl or Albundy or Alfonso

1976 Fj55 landcruiser, 39" krawlers, front and rear lockers, on board air compressor , 16 speed transmission

1977 fj40 stock
1987 fj60 locked front and rear 33" tires

Top
#2260653 - 01/25/08 07:33 AM Re: Chrysler....low oil pressure when brake is applied?? [Re: Relix]
RacerXI Offline
Post Master Sr


Registered: 07/04/00
Posts: 8900
Loc: Dothan, AL
 Originally Posted By: 92_Civic_VX_B18c
Is the oil filled to the correct level?

Yes. It was checked and then completely changed. The issue has only happened once since the oil change. She had 2500 on the prev. oil change and it was still full at that point so I ruled out oil being burned.
_________________________
Rodney
04 S2000

Top
#2282949 - 01/31/08 10:00 PM Re: Chrysler....low oil pressure when brake is applied?? [Re: RacerXI]
Noob4Life Offline
Post Master Supreme


Registered: 05/30/02
Posts: 26653
Loc: IL, USA
I just had this happen on the way home tonight. It only happened once, but it freaked me out. I was in second, at like 1200rpm or so. I tapped the brakes, and the oil light went on for a split second. I think maybe the RPM's dropped a little too low and the engine was about to stall out.
Top
#2283076 - 01/31/08 10:35 PM Re: Chrysler....low oil pressure when brake is applied?? [Re: Noob4Life]
RacerXI Offline
Post Master Sr


Registered: 07/04/00
Posts: 8900
Loc: Dothan, AL
She's got an autotragic. I did some more reading and found out the sensor triggers when the psi reads between 2 and 4. Normal seems to be 7psi at idle. I need to pull the sensor and manually test the pressure at idle and with the tranny in drive with the brake applied. That condition is the only time her oil light comes on. It would seem that would be a high load moment, but I'm going to have her do the same with it in reverse. I'm holding out on blame until I can test the pressure.
_________________________
Rodney
04 S2000

Top
#2283766 - 02/01/08 07:47 AM Re: Chrysler....low oil pressure when brake is applied?? [Re: RacerXI]
Chris92Sc2 Offline
Post Master Supreme


Registered: 12/21/00
Posts: 13408
Loc: MI USA
Makes sense that its the sensor if the MAster cylinder is pulling pressure away from it when she hits the brakes. Maybe a vac leak somewhere too.
_________________________

Top
#2283860 - 02/01/08 08:48 AM Re: Chrysler....low oil pressure when brake is applied?? [Re: Chris92Sc2]
UglyValiant Offline
Post Master Sr


Registered: 10/09/02
Posts: 6362
Loc: Milwaukee, WI
An odd guess would be the throttle posistion sensor...it may be that when she puts on the brake, she's just lifting her foot off the gas. Car tries to return to an idle setting with regards to the throttle...with a bad tps, it'll tend to stall out, but only occassionally/randomly. If the rpm's are dropping much lower than the factory idle speed (~600rpm), it'll trip the oil pressure sensor.

Have you run an obd scan? I'd start there...
_________________________
1979 Dodge Lil' Red Express Truck
1989 Shelby CSX (#500/500)
The most powerful production minivan money can buy.

Top
#2285389 - 02/01/08 03:49 PM Re: Chrysler....low oil pressure when brake is applied?? [Re: Chris92Sc2]
SyFastfedful Offline
Post Master Sr


Registered: 07/06/01
Posts: 5583
Loc: Portland, OR, USA
 Originally Posted By: Chris92Sc2
Makes sense that its the sensor if the MAster cylinder is pulling pressure away from it when she hits the brakes. Maybe a vac leak somewhere too.


How would something powered by intake vacuum affect something pressurized by a mechanical oil pump?
_________________________

Top
#2285498 - 02/01/08 04:25 PM Re: Chrysler....low oil pressure when brake is applied?? [Re: SyFastfedful]
Chris92Sc2 Offline
Post Master Supreme


Registered: 12/21/00
Posts: 13408
Loc: MI USA
 Originally Posted By: SyHopeful
 Originally Posted By: Chris92Sc2
Makes sense that its the sensor if the MAster cylinder is pulling pressure away from it when she hits the brakes. Maybe a vac leak somewhere too.


How would something powered by intake vacuum affect something pressurized by a mechanical oil pump?


Sometimes the sender for the dash CEL gets its signal from a vacuum source. At least I thought it did. Guess not.


Edited by Chris92Sc2 (02/01/08 04:25 PM)
_________________________

Top
#2285892 - 02/01/08 06:11 PM Re: Chrysler....low oil pressure when brake is applied?? [Re: Chris92Sc2]
RacerXI Offline
Post Master Sr


Registered: 07/04/00
Posts: 8900
Loc: Dothan, AL
It did throw a cam position sensor code and a local shop replaced it last week. The only other code I'm aware it has thrown was a random missfire. It still trips the oil light when braking.
_________________________
Rodney
04 S2000

Top
#2287669 - 02/02/08 05:15 PM Re: Chrysler....low oil pressure when brake is applied?? [Re: RacerXI]
UglyValiant Offline
Post Master Sr


Registered: 10/09/02
Posts: 6362
Loc: Milwaukee, WI
No problems with acceleration or hard turning?

If not...I'd go ahead and check the pressure manually and drive around...see if it changes at all.

I mean are you actually "braking" braking? or just tapping it without slowing down? How hard do you have to brake to get it to trip the lights?

Could be some bizzarre short/crossed wire type thing...otherwise, there really isn't any reason why it'd just do it braking.

It wouldn't be too hard to pull the pan and inspect the pick-up too if you're getting really perplexed.

call click n' clack (the tappet brothers) if all else fails...


Edited by UglyValiant (02/02/08 05:16 PM)
_________________________
1979 Dodge Lil' Red Express Truck
1989 Shelby CSX (#500/500)
The most powerful production minivan money can buy.

Top
#2289807 - 02/03/08 07:20 PM Re: Chrysler....low oil pressure when brake is applied?? [Re: UglyValiant]
RacerXI Offline
Post Master Sr


Registered: 07/04/00
Posts: 8900
Loc: Dothan, AL
There are no problems accelerating. It pretty much only happens when she brakes to a stop. Once it gets still, ding light goes on. I could see how it would only happen while it's in gear and stopped. That's a high amount of load. I wonder if it happens in reverse also. I'm going to throw a manual gauge on it next.
_________________________
Rodney
04 S2000

Top
#8978808 - 03/20/17 09:57 PM Re: Chrysler....low oil pressure when brake is applied?? [Re: RacerXI]
ypMs Offline
Jr Poster


Registered: 03/20/17
Posts: 80
nike air max running shoes
christian louboutin outlet
Air Max 90
Adidas Shoes Discount Marketplace
Nike Air Jordan 11
scarpe hogan outlet
ugg clearance
Adidas Originals Superstar
Oakley Sunglasses Cheap
Kobe Shoes Nike
Nike Shoes Discount Marketplace
cheap uggs
Air Max Pas Cher
Original Ugg Boots
canada goose jackets on sale
nike mercurial soccer cleats
chaussure Nike homme
zapatillas running
Doudoune Moncler Femme Pas Cher
Jordan Sneakers For Sale
toms sale
Pandora Store Sale
Adidas Originals Stan Smith
Canada Goose Outlet
new yeezy shoes
ugg store
Ray Ban Sunglasses Online
moncler jacket sale
Ray ban sale online
Nike Air Sneakers
Nike Shoes Sale Store
Michael Kors
nike schuhe gŁnstig
The official UGG
fitflops sale uk
Canada Goose Outlet
adidas outlet
Nike Zapatos
Michael Kors Handbags Discount
pandora outlet store
air force one pas cher
Nike Online Store
adidas store
Nike Air Women
goedkope nike air max
Coach Bags On Sale
Air Nike
Air Max Sneakers
Adidas Neo Discount Sale
converse store
Hugo Boss Sale
Pandora Store
zapatillas nike baratas
Nike Shox Cheap
Ray-Ban Official Discounted Site
new jordan releases
UGG BOOTS FOR WOMEN
Boost Yeezy Sale On Line
uggs outlet
nike jordan shoes
zapatilla adidas
ADIDAS NMD SALE ON LINE
religion store
Discount Air Max
pandora jewelry store
nfl store
huarache sneakers
longchamp bags on sale
Negozi Pandora
Nike Roshe Run Sale
nike joggesko
Boutique Ugg
moncler outlet
TOMS SHOES OUTLET
nike air
abercrombie and fitch store
Jordan Shoes Air
nike shoes
Doudoune Moncler Pas Cher
zapatos de futbol nike
chaussure basket homme
Canada goose dam
Nike Air Huarache For Sale
billige nike sko
Chaussure Nike Air Max Pas Cher
Nike Soccer Cleats Boots
Moncler Sale
Uggs Pas Cher Soldes
Michael Kors Outlet
Nike Air Max Goedkoop
botas de futbol
Pandora Official Website
louboutin heels
Ugg boots Sale
Yeezy Black
Hogan Outlet
cheap nike air max
Nike Factory Store
new pandora charms
Cheap Michael Kors
Vans Black Sneakers
Jordan Schoenen
Soccer Boots Outlet nike
prada outlet
canada goose jacket outlet
Nike Air Pas Cher
Scarpe Air Max
nike air jordan pas cher
nike sportschuhe
hogan scontate
Air Max Kopen
Air Jordan Retro Sale
Air max dam
Air max levně
Timberland Outlet
cheap uggs for women
newest lebron shoes
ugg factory outlet
Descuentos Nike
Yeezy Boost Sale Online
Nike Air Max Cheap
Pandora Store
Nike Shox discount Sale
nike sb stefan janoski
Ugg Pas Cher En France
nike sneakers
Ugg Outlet Online Store
Stone Island Outlet
Moncler Jackets Discount Marketplace
Moncler Outlet Online
scarpe nike
Doudoune Moncler Site Officiel
Nike Air Damen
womens nike air max
Air Max Femme
Boty Nike Air
Adidas Superstar
Bottes Ugg Femme Pas Cher
Yeezy Shoes Discount Marketplace
Adidas Superstar Sale Online
Moncler Outlet Store
Ugg Pas Cher Femme
nike tn pas cher
pandora beads
Nike Air 90
chaussures nike pas cher
Canada Goose Womens Coats
reebok running shoes
retro jordans for cheap
gŁnstige nike schuhe
Yeezy Men
official NHL jerseys
Nike Store
Toms Outlet Online
uggs for women
vans shoe store
Nike Pas Cher Femme
Jordan Store
toms shoes outlet
coach factory outlet online
Uggs For Cheap

ypMs 2017.3.21

Top
Page 1 of 1 1


Moderator:  auxilary 
Hop to:
Shout Box

CSi Sponsors

DallasColo
Dallas Colocation
Brake Kits
StopTech.Sale BBK Clearance
Brake Kits
Brake Kits Cheap
EBC Brake Kits
EBC Brakes
BuyBrakes
Brake Kits-Pads & Rotors Sets
Cruchfield
Audio/Video/Cameras
DeadWood Knives
Knives, Home & Hunting
Samys Camera
GoPros, Cameras, Gear
TireRack
Tires/Wheels/Suspension
Truck Accessories
Tonneaus, Running Boards
1-800-Flowers
Flowers & Gift Baskets
WeatherTech
Coupon Code "take10"
Porsche Brakes
Porsche Brake Upgrades
Artisan Soap Lab
Handcrafted Bodycare
Advertisement

| Brake Kits Cheap | EBC Brake Pads & Rotors | Performance Brake Kits | Porsche Brake Upgrades-Big Brake Kits | WeatherTech Mats -Coupon Code weathertech10