It is currently Wed Sep 18, 2019 6:36 pm

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 14 posts ] 
Author Message
PostPosted: Mon Aug 26, 2019 10:07 pm 
Offline
SE Member
SE Member

Joined: Fri Mar 09, 2018 8:31 pm
Posts: 15
Year and Trim: 1995
This problem started over a week ago right in the middle of a road trip. It began while going uphill on cruise control at 65, it started choking and sputtering, took off cruise, gave it gas and it stopped. At the next stop the check engine light came on. Now it cranks right up but won't idle, IAC was making lots of clicking noises so we went ahead and replaced it. It ran good that evening but started again with the bad idle the next morning. Had the battery checked, tested bad so replaced it too. No improvement. Went over all air hoses, patched and replaced anything that seemed even slightly suspect. No improvement. Now not only is the idle bad, it also stalls out. Mostly at idle but it's also cut off under acceleration a few times. There is no parts shop in this town that can scan codes from it so I don't want to keep throwing money at sensors. We have a diagnostic scheduled for later in the week at a dealership but if there is anything we can keep testing that would be better on the finances. This is the first time we have not been able to pin down the problem in the four years we've had it. Fuel pressure regulator is spraying when tested but don't have the tool to check pressure. No, have not checked plugs, what are we looking for when we do. Battery and alternator check out strong but there is a drop in the dash board battery meter as it begins to stall. Checked and cleaned connections. The belt tensioner had to be replaced two years ago, could it failing again cause this? How can we check tension accurately? It looks and feels the same as it always has. Any advice would be greatly appreciated, thank you!


Top
 Profile  
 
PostPosted: Mon Aug 26, 2019 10:14 pm 
Offline
SE Member
SE Member

Joined: Fri Mar 09, 2018 8:31 pm
Posts: 15
Year and Trim: 1995
Oh, also replaced air and fuel filters. Replaced all relevant fuses under the dash, both sides. Coils replaced two years ago. 216k miles, 90% highway, know all previous owners.


Top
 Profile  
 
PostPosted: Tue Aug 27, 2019 8:00 am 
Offline
Administrator
Administrator
User avatar

Joined: Mon May 19, 2008 7:01 pm
Posts: 16821
Location: Central Illinois
Year and Trim: 1992 SSE
2009 G8 GT
Does it behave different when the maf is unplugged?

_________________
Image
WHITE WHINE - IT'S INTOXICATING. 1992 SSE Supercharged 236.26 ci (.040 Over)
15.090 at 90.2 MPH on old engine w/ slipping trans & melted O2 sensor - Gen 3 M62 and matching TB, Gen 2 Pully, Zillamotorsports Ported LIM, YT 1.72 Roller Rockers, SII FPR & Injectors, Easy Performance Gen 3 Air/Fuel Calibrator, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers and 10" Subs, 1300 watts, 140 amp Alternator, Ricepipe CAI w/ heatshield, Pilot Angel Eye Foglights, Clear Corners, '02 17" Chrome Bent 5's, Magnaflow F-Body Muffler and Hi-flo Cat, McCoy Motorsports Ceramic Coated Ported Exhaust Manifolds, Fan Override, PowerSlot Slotted Rotors.
2009 G8 GT - Sport Red Metallic, loaded, SOLO Axlebacks, Rotofab Intake, Tuned, autodim Trailblazer mirror, removed intake manifold cover, HSV GTS triple gauge pod, two tone red-hot shifter and HSV SuperSport steering wheel, GXP rear sway bar and diffuser


Top
 Profile  
 
PostPosted: Tue Aug 27, 2019 8:34 pm 
Offline
Posts like a Northstar
Posts like a Northstar

Joined: Sun Aug 22, 2010 11:11 pm
Posts: 1697
Location: Ontario, Canada
Year and Trim: 2000 Bonniville SSEi L67
unplug the maf sensor on top of throttlebody - near iac

_________________
poverty forces one to do unorthodox things

2000 SSEi
past rides:
1996 SSEi
1992 GTP
1987 Grand Am


Top
 Profile  
 
PostPosted: Tue Aug 27, 2019 9:11 pm 
Offline
Posts like an LN3
Posts like an LN3

Joined: Thu Feb 18, 2010 4:56 pm
Posts: 565
Location: Savannah, Georgia
Year and Trim: 2001 SSEi
I can't understand how you can be purchasing all the parts, and have no way to scan for codes. I thought every parts store provided this service.


Top
 Profile  
 
PostPosted: Wed Aug 28, 2019 3:53 pm 
Offline
SE Member
SE Member

Joined: Fri Mar 09, 2018 8:31 pm
Posts: 15
Year and Trim: 1995
The 95 has an OBD 1.5 scan system. That is why it is scheduled for a dealer diagnostic, no parts store in this town has one. I will try unplugging the MAF and let you know how it behaves.


Top
 Profile  
 
PostPosted: Thu Aug 29, 2019 8:13 pm 
Offline
SE Member
SE Member

Joined: Fri Mar 09, 2018 8:31 pm
Posts: 15
Year and Trim: 1995
Dealer came back with a diagnosis of crankshaft position sensor. That sound right to you?


Top
 Profile  
 
PostPosted: Thu Aug 29, 2019 8:23 pm 
Offline
Administrator
Administrator
User avatar

Joined: Mon May 19, 2008 7:01 pm
Posts: 16821
Location: Central Illinois
Year and Trim: 1992 SSE
2009 G8 GT
Sounds possible. Did you get the code number?

_________________
Image
WHITE WHINE - IT'S INTOXICATING. 1992 SSE Supercharged 236.26 ci (.040 Over)
15.090 at 90.2 MPH on old engine w/ slipping trans & melted O2 sensor - Gen 3 M62 and matching TB, Gen 2 Pully, Zillamotorsports Ported LIM, YT 1.72 Roller Rockers, SII FPR & Injectors, Easy Performance Gen 3 Air/Fuel Calibrator, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers and 10" Subs, 1300 watts, 140 amp Alternator, Ricepipe CAI w/ heatshield, Pilot Angel Eye Foglights, Clear Corners, '02 17" Chrome Bent 5's, Magnaflow F-Body Muffler and Hi-flo Cat, McCoy Motorsports Ceramic Coated Ported Exhaust Manifolds, Fan Override, PowerSlot Slotted Rotors.
2009 G8 GT - Sport Red Metallic, loaded, SOLO Axlebacks, Rotofab Intake, Tuned, autodim Trailblazer mirror, removed intake manifold cover, HSV GTS triple gauge pod, two tone red-hot shifter and HSV SuperSport steering wheel, GXP rear sway bar and diffuser


Top
 Profile  
 
PostPosted: Fri Aug 30, 2019 12:51 pm 
Offline
SE Member
SE Member

Joined: Fri Mar 09, 2018 8:31 pm
Posts: 15
Year and Trim: 1995
No, they were not exactly over helpful. They put the plastic engine cover on wrong... The oil filler cap was screwed on crooked...The engine was smoking hot like they hot-rodded it up and down the interstate or something, I can't stand letting people work on it out of my sight, something always ends up messed up.


Top
 Profile  
 
PostPosted: Mon Sep 02, 2019 3:35 pm 
Offline
Posts like an LN3
Posts like an LN3
User avatar

Joined: Fri Jun 24, 2016 12:15 am
Posts: 521
Location: Isanti, MN
Year and Trim: 2000 SLE Saved from the scrapyard.
A bad crank sensor could be the problem, but check the wiring leading down to it first. These were known to have exposed wiring due to oil leaks traveling down the wiring and breaking the insulation down. Replacing the wiring is easier than doing the crank sensor ( I've done it recently ), though the crank sensor isn't terrible if you have the harmonic balancer puller ( Which you need ), as well as a good impact or are comfortable breaking the crankshaft nut by cranking the engine over ( there's a video on how to do it )

_________________
A temporary fix does not exist. It becomes a solution until it needs to be fixed again.
Image
https://photos.google.com/album/AF1QipOYkkevV0gKTHc_8Cstuy8yS1Qyx6SiIKeTzuHy


Top
 Profile  
 
PostPosted: Tue Sep 03, 2019 10:27 am 
Offline
Posts like an LG3
Posts like an LG3
User avatar

Joined: Tue Oct 19, 2010 7:45 am
Posts: 318
Location: New York
Year and Trim: 2004 Bonneville SE
For whatever it's worth, when I experienced a similar problem it was the ICM. Although it tested OK, it malfunctioned when it got hot.
Also, how are the spark plug wires?

_________________
2004 Bonneville SE 151,xxx- 20% tint all around, 5% tint bar on windshield | 4500k DDM HID low | De-badged | Hardwired Passport 9500ix | FWI(inter-cooler piping) | FE2 Rear Sway Bar | Solid Motor Mount | 180* Stat | Firm Shift Kit

My old car(now brother's car) 1998 Bonneville SE 230,xxx- 20% tint all around
Other cars in family(only the Pontiacs)
- '92 Bonneville SE - '85 Grand Am - '73 Catalina - '67 Catalina
- '87 Bonneville SE - '82 6000 - '78 Catalina


Top
 Profile  
 
PostPosted: Wed Sep 04, 2019 8:14 am 
Offline
Administrator
Administrator
User avatar

Joined: Mon May 19, 2008 7:01 pm
Posts: 16821
Location: Central Illinois
Year and Trim: 1992 SSE
2009 G8 GT
Thinking back, I've had a crank sensor go bad before. It got worse with heat and acted kinda similar.

_________________
Image
WHITE WHINE - IT'S INTOXICATING. 1992 SSE Supercharged 236.26 ci (.040 Over)
15.090 at 90.2 MPH on old engine w/ slipping trans & melted O2 sensor - Gen 3 M62 and matching TB, Gen 2 Pully, Zillamotorsports Ported LIM, YT 1.72 Roller Rockers, SII FPR & Injectors, Easy Performance Gen 3 Air/Fuel Calibrator, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers and 10" Subs, 1300 watts, 140 amp Alternator, Ricepipe CAI w/ heatshield, Pilot Angel Eye Foglights, Clear Corners, '02 17" Chrome Bent 5's, Magnaflow F-Body Muffler and Hi-flo Cat, McCoy Motorsports Ceramic Coated Ported Exhaust Manifolds, Fan Override, PowerSlot Slotted Rotors.
2009 G8 GT - Sport Red Metallic, loaded, SOLO Axlebacks, Rotofab Intake, Tuned, autodim Trailblazer mirror, removed intake manifold cover, HSV GTS triple gauge pod, two tone red-hot shifter and HSV SuperSport steering wheel, GXP rear sway bar and diffuser


Top
 Profile  
 
PostPosted: Sun Sep 08, 2019 3:17 pm 
Offline
SE Member
SE Member

Joined: Fri Mar 09, 2018 8:31 pm
Posts: 15
Year and Trim: 1995
There were indeed open wires going back under there belt area but after patching them it is acting crazier than ever. Revs up and down at idle and still stalls at idle or while driving. The sensor seems like a bit of a hassle to get at. So the puller is a must?


Top
 Profile  
 
PostPosted: Mon Sep 09, 2019 10:26 am 
Offline
Certified Bonneville Nut
Certified Bonneville Nut
User avatar

Joined: Tue Aug 25, 2009 8:32 pm
Posts: 4536
Location: Dearborn, MI
Year and Trim: '93 SSEi
'05 STS-4
'97 Camaro
'97 LeSabre
Yes, puller is a must. Also, the kit's in the auto stores don't come with the correct threaded bolts, I believe there's another kit that has the bolts, I can't recall what thread they were but it's either M6 or 1/4-28 (fine thread). Make sure you use the right ones, as they are a close fit between the M6 and the 1/4-28 and running the wrong ones in will damage the threads on the balancer.

The hardest part is getting the bolt off. What I do is put a 6 foot pipe on the end of my breaker bar, and run a screwdriver along the oil pan and into one of the holes in the flex plate to hold the crank from spinning when breaking the bolt loose. Don't try to pry on the edge of the trans and a tooth on the flexplate, it will crack the trans case. I've never been able to crack that bolt loose with the starter motor method.

Also, there is a plastic cover behind the balancer that is held on by snaps. Don't throw it away, it keeps the wire for the cam sensor from hitting the balancer.

On the wiring, do you have access to the diagram for the harness between the ICM and the crank/cam sensors, and a DMM or something similar? It's possible that some of the wires you repaired got mixed up too.

_________________
Blow all the things! Wait, I meant boost. Boost!
Image

Runs:
'93 Pontiac Bonneville SSEi - Twincharged, manual, and lots more! Build thread
'97 Chevy Camaro - 3800 supercharged, T5, T-tops
'05 Cadillac STS - V8, AWD, her DD
'92 Olds Trofeo - Fair weather DD
'84 GMC Sierra Classic - Twin turbo 3800
'97 Buick LeSabre - L67 winter DD
'92 Pontiac Bonneville SSE future project

Doesn't run:
'87 Buick LeSabre T-type - future victim
'67 Buick LeSabre - future victim


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 14 posts ] 

All times are UTC - 5 hours [ DST ]


Related topics
 Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. 99 Bonneville SE stalling at idle or during stop

RR20

12

5495

Fri Jun 10, 2011 6:19 pm

sonoma_zr2 View the latest post

There are no new unread posts for this topic. 98' Bonneville pulling to right and shaking violently

wpbrink

2

519

Wed Jun 13, 2018 4:55 pm

imidazol97 View the latest post

There are no new unread posts for this topic. misfire/bogging/backfire

nicklikesmilk

3

1090

Sun May 15, 2011 1:21 pm

nicklikesmilk View the latest post

There are no new unread posts for this topic. 99 bonneville stalling issues

jstauff

8

994

Sun Oct 02, 2016 9:54 pm

redfury View the latest post

There are no new unread posts for this topic. '99 Pontiac Bonneville SE Stalling when Braking

wooley1985

1

1095

Tue Aug 07, 2012 11:26 pm

01bonneSC View the latest post

 


Who is online

Users browsing this forum: No registered users and 7 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group


phpBB SEO