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03-11-2009, 01:28 PM
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#1
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Join Date: Mar 2008
Location: Somerset, NJ
Posts: 4,223
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this problem erks me can anyone tell me what it is
i have an 87 iroc with pretty much aftermarket everything. when i turn the wheel wayyy to the left or wayyyy to the right the rpm dips down alot and the car feels like its going to stall if i dont give it gas. im taking it that its not normal, but can anyone point me in the right direction as to what it is?
thanks in advance
Jon
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Jon
1999 Trans am WS6
1996 Corvette LT4 6 speed
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03-11-2009, 01:53 PM
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#2
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Join Date: Oct 2008
Location: Clayton
Posts: 521
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it might be just the steering pump being under load since your turning it. i see alot of cars do it but not as bad as your describing. for starters, i would check the fluid level in the steering pump to see if it is low or over filled.
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03-11-2009, 01:57 PM
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#3
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Admin.
Join Date: Aug 2005
Location: Hamilton, NJ
Posts: 20,165
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^^^yup
EFI or carb?
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Vent Windows Forever!
The looser the waistband, the deeper the quicksand. Or so I have read.
Feather-light suspension, Konis just couldn't hold. I'm so glad I took a look inside your showroom doors.
Hey everybody, it's good to have you on the Baba-too-da-ba-too-ba-ba-buh-doo-ga-ga-bop-a-dop
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03-11-2009, 02:06 PM
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#4
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Join Date: Mar 2008
Location: Somerset, NJ
Posts: 4,223
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carbureated
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Jon
1999 Trans am WS6
1996 Corvette LT4 6 speed
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03-11-2009, 02:07 PM
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#5
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Join Date: Mar 2008
Location: Somerset, NJ
Posts: 4,223
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the fluid for the steering pump is right in front of the booster correct?
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Jon
1999 Trans am WS6
1996 Corvette LT4 6 speed
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03-11-2009, 03:23 PM
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#6
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Admin.
Join Date: Aug 2005
Location: Hamilton, NJ
Posts: 20,165
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No, that is the brake reservoir. The p/s pump/reservoir is bolted to the front of the engine, should be lower LH side. Check the fluid.
When you load the PS at the end of the range it loads the pump which can be a drag on the engine. EFI can compensate with the IAC but a carb can't.
__________________
Vent Windows Forever!
The looser the waistband, the deeper the quicksand. Or so I have read.
Feather-light suspension, Konis just couldn't hold. I'm so glad I took a look inside your showroom doors.
Hey everybody, it's good to have you on the Baba-too-da-ba-too-ba-ba-buh-doo-ga-ga-bop-a-dop
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03-11-2009, 03:41 PM
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#7
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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Quote:
Originally Posted by BonzoHansen
The p/s pump/resevoir is bolted to the front of the engine, shoud be lower LH side. Check the fluid.
When you load the PS at the end of the range it loads the pump which can be a drag on the engine. EFI can compensate with the IAC but a carb can't.
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In addition, if you are running non-stock tires that are larger and/or stickier than the originals the system will have to strain more to turn them.
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03-11-2009, 04:35 PM
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#8
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11 second club / Moderator
Join Date: Aug 2004
Location: West Berlin, NJ
Posts: 7,148
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Quote:
Originally Posted by BonzoHansen
No, that is the brake reservoir. The p/s pump/reservoir is bolted to the front of the engine, should be lower LH side. Check the fluid.
When you load the PS at the end of the range it loads the pump which can be a drag on the engine. EFI can compensate with the IAC but a carb can't.
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Carbs do also. There is a sensor in the high pressure PS line, that will click on that selenoid to push the throttle linkage a little.
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2001 Trans Am WS6 •SLP Loudmouth II •UMI Suspension •12.857 @ 109.57
1996 Trans Am WS6 •Pacesetter Longtubes •Strange 12 Bolt •Spohn Suspension •11.152 @ 123.85
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03-11-2009, 04:38 PM
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#9
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Admin.
Join Date: Aug 2005
Location: Hamilton, NJ
Posts: 20,165
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Quote:
Originally Posted by deadtrend1
Carbs do also. There is a sensor in the high pressure PS line, that will click on that selenoid to push the throttle linkage a little.
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I'm assuming that this is not a carb car from GM.
__________________
Vent Windows Forever!
The looser the waistband, the deeper the quicksand. Or so I have read.
Feather-light suspension, Konis just couldn't hold. I'm so glad I took a look inside your showroom doors.
Hey everybody, it's good to have you on the Baba-too-da-ba-too-ba-ba-buh-doo-ga-ga-bop-a-dop
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03-11-2009, 05:03 PM
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#10
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11 second club / Moderator
Join Date: Aug 2004
Location: West Berlin, NJ
Posts: 7,148
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Quote:
Originally Posted by BonzoHansen
I'm assuming that this is not a carb car from GM.
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my 86 T/A had it, before I swapped to the TPI
__________________
2001 Trans Am WS6 •SLP Loudmouth II •UMI Suspension •12.857 @ 109.57
1996 Trans Am WS6 •Pacesetter Longtubes •Strange 12 Bolt •Spohn Suspension •11.152 @ 123.85
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03-11-2009, 05:14 PM
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#11
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Co-Founder / Site Admin
Join Date: Jul 2004
Location: Ewing, NJ
Posts: 22,476
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Quote:
Originally Posted by deadtrend1
my 86 T/A had it, before I swapped to the TPI
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No, he means that the OP isn't using a CC Q-jet....IIRC he's got a BG 750.
- Justin
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1999 Camry - Beigemobile DD
2002 Suburban - Wife's DD
2004 Grand Cherokee - Not running / Project / Selling?
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03-11-2009, 05:38 PM
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#12
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11 second club / Moderator
Join Date: Aug 2004
Location: West Berlin, NJ
Posts: 7,148
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If you say so ... lol
__________________
2001 Trans Am WS6 •SLP Loudmouth II •UMI Suspension •12.857 @ 109.57
1996 Trans Am WS6 •Pacesetter Longtubes •Strange 12 Bolt •Spohn Suspension •11.152 @ 123.85
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03-12-2009, 04:20 PM
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#13
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Join Date: Mar 2008
Location: Somerset, NJ
Posts: 4,223
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Quote:
Originally Posted by Tru2Chevy
No, he means that the OP isn't using a CC Q-jet....IIRC he's got a BG 750.
- Justin
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yeah i have a 4bbl 750cfm barry grant double pumper. the tires are stock though, 245/50/16 on stock iroc rims. i will check the ps fluid and check back here.
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Jon
1999 Trans am WS6
1996 Corvette LT4 6 speed
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03-12-2009, 06:26 PM
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#14
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,368
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maybe the pump is on its way out and is putting more of a load on the car now. it only does it if you are > 5 mph or completely stopped right?
Last edited by sweetbmxrider; 03-12-2009 at 06:49 PM.
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03-12-2009, 07:55 PM
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#15
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Join Date: Mar 2008
Location: Somerset, NJ
Posts: 4,223
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Quote:
Originally Posted by sweetbmxrider
maybe the pump is on its way out and is putting more of a load on the car now. it only does it if you are > 5 mph or completely stopped right?
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yeah thad exactly what happens. that could be a possibility. I'll check then fluids first haven't got a chance to do that between work and school
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Jon
1999 Trans am WS6
1996 Corvette LT4 6 speed
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03-12-2009, 09:01 PM
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#16
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,368
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check it and also check the belt deflection. basically pull up and push down on the power steering belt (assuming this is a v-belt, if its a serpentine/one belt just ignore) if it deflects more than roughly 1/2"-3/4" at most, i'd stick a belt on there or adjust the tension.
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03-12-2009, 11:56 PM
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#17
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Join Date: Mar 2008
Location: Shreveport Louisianna Barksdale AFB
Posts: 1,415
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Dude that same thing use to happen with my old edelbrock. Carb needs adjustment when ever I turned hard it wouldnt have enough fuel. When I put the holley on same thing. Im still wondering what that could have been.
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USAF Jet Propulsion Specialist
 1985 383 Camaro-nothing special I promise 
2000 NBM z28-also nothing special
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03-13-2009, 10:20 AM
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#18
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Join Date: Mar 2008
Location: Somerset, NJ
Posts: 4,223
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Quote:
Originally Posted by Jersyboyy
Dude that same thing use to happen with my old edelbrock. Carb needs adjustment when ever I turned hard it wouldnt have enough fuel. When I put the holley on same thing. Im still wondering what that could have been.
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any other signs that a carb needs adjustment? remember how u said our cars have to warm up by keeping your foot on the gas until its warm? does yours still do that even though the weather got a little bit better?
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Jon
1999 Trans am WS6
1996 Corvette LT4 6 speed
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03-13-2009, 10:22 AM
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#19
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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Quote:
Originally Posted by madness410
any other signs that a carb needs adjustment? remember how u said our cars have to warm up by keeping your foot on the gas until its warm? does yours still do that even though the weather got a little bit better?
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Does your engine have a choke?
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03-13-2009, 12:14 PM
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#20
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Join Date: Mar 2008
Location: Shreveport Louisianna Barksdale AFB
Posts: 1,415
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Neither one of our cars have chokes but my motor had two bad cylinders so their was a reason why mine did that and its been 5 months since my car has ran. Yours on the other hand probally could use an adjustment.
I was told from John Mazio(from "Ask Franks") that if the motor is set up right timings good and the carb is good even with out the choke I shouldnt have had such a big problem getting it started in the mornings like I was.
My problem was bad pistons and crappy wires-yours could be carb adjustment or timing you never know because you bought this car set up from someone else you should really go over everything and dial it all in.
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USAF Jet Propulsion Specialist
 1985 383 Camaro-nothing special I promise 
2000 NBM z28-also nothing special
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03-13-2009, 12:17 PM
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#21
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Join Date: Mar 2008
Location: Somerset, NJ
Posts: 4,223
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Quote:
Originally Posted by WildBillyT
Does your engine have a choke?
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do u mean to ask if the carb has a choke? the carb doesn't.
__________________
Jon
1999 Trans am WS6
1996 Corvette LT4 6 speed
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03-14-2009, 06:26 PM
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#22
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Banned Camp Director Emeritus
Join Date: Aug 2004
Location: Somerset County
Posts: 8,395
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either the P/S fluid level or the P/S pump itself. if the belt is too loose, wouldn't it will slip on the pulley during steering lock?
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Quote:
Originally Posted by baddest434
and 1 more smart ass answer by you and i'm going to reach into this monitor and grab you by the throat
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03-15-2009, 10:09 AM
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#23
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,368
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yeah i don't really know where i was going there. it seems like a combo of different things are probably going on.
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