i am screwed... bonnie is down. - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1987-1991 Parley with regards to your 1987 to 1991 Bonneville, Olds 88 or Buick Le Sabre Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 03-07-2008, 12:16 PM   #11
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im on my way to AAMCO right now for a free diagnosis and a price quote.
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Old 03-07-2008, 12:20 PM   #12
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Quote:
Originally Posted by petraman
Why don't you tell us exactly what happened, see if we can figure out what happened.. It might just be time for a fluid flush...
i did a fluid flush and filter change a year ago at aamco..

what happened was i was driving home and at 60 mph the car started jherking foward and it felt like i was riding over tons of bricks, but only when i step on the gas.. if im going downhill and just letting the car ride it out it is as smooth as can be and feels like nothing wrong. but when i sit at a red light with my foot on the brake the car jumps and the rpms go from 0 to 1000 to 0 and so on untill i step on the gas and it goes kinda slowly at first but it goes and it jumps no matter what speed. but the car still drives..
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Old 03-07-2008, 12:28 PM   #13
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Try getting the MAP sensor checked. My wifes van did something like that. Didn't shift right, idled real bad, no power, ran kind of. It'* worth a look.
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Old 03-07-2008, 12:41 PM   #14
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MAPs didn't show up until 1996. At least for PCM purposes.

First, lets check your kickdown cable and make sure it'* adjusted correctly. MAF sensors have also been known to contribute to funky driving conditions.

Your PCM will not pull trans codes...you have very little in the line of electronics in there...just lockup TC.

Hmm...lockup TC...was this feeling more like a "chggule" kinda feeling?
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Old 03-07-2008, 01:26 PM   #15
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ok i pulled some codes before i go to aamco. here they are

code 34
code 39
code 42
code 44
code 48


so now i will go change the ignition coil, the module and the maf and see what happens..

Code 12
1 flash, pause, 2 flashes

Diagnostic
This Code will flash whenever the diagnostic terminal is grounded with the ignition switch turned on and the engineis not running.

Code 13
1 flash, pause 3 flashes

Oxygen Sensor
Check the wiring and connectors from the oxygen sensor.&Replace the oxygen sensor

Code 14
1 flash, pause, 4 flashes

Coolant Sensor Circuit
(high temperature)
If the engine is experiencing overheating problems, have those fixed before continuing. &Check all wiring and connectors associated with the coolant temperature sensor. &Replace the Coolant temperature sensor.

Code 15
1 flash, pause, 5 flashes

Coolant Sensor Circuit
(low temperature)
See above, then check wiring connections at the ECM

Code 16
1 flash, pause, 6 flashes

System High Voltage
If the voltage is above 17.1 volts for more than 2 seconds, the Service Engine Soon light will illuminate. &Have the charging system checked

Code 21
2 flashes, pause, 1 flash

Throttle Position Sensor
Check for a sticking, or mis-adjusted throttle position sensor

Code 22
2 flashes, pause, 2 flashes
3
Throttle Position Sensor
check TPS adjustment. &Replace the TPS sensor

Code 23
2 flashes, pause, 3 flashes

Manifold Air Temperature
Check the MAT sensor, wiring, and connectors for a possible open circuit. &replace the MAT sensor

Code 24
2 flashes, pause, 4 flashes

Vehicle Speed Sensor
This code can only appear when the vehicle is in motion, if it appears when the car is not in motion, ignore it. &Check ECM connections, any other problems should be diagnosed by a qualified mechanic.

Code 25
2 flashes, pause, 5 flashes

Manifold Air Temperature
Check the voltage between the MAT sensor and the ECM. &voltage should be above 4 volts

Code 26
2 flashes, pause, 6 flashes

Quad Driver Circuit
Have the car checked by a dealer

Code 27
2 flashes, pause, 7 flashes

Gear switch Diagnosis
Have the car checked by a dealer

Code 28
2 flashes, pause, 8 flashes

same as Code 27
Same as code 27

Code 29
2 flashes, pause, 9 flashes


Same as code 27

Same as code 27

Code 31
3 flashes, pause, 1 flash

Park/nuetral switch
Check all connectors, and for a faulty switch

Code 32
3 flashes, pause 2 flashes

EGR System
Check vacuum hoses and connections for leaks and restrictions. &Replace the EGR solenoid or valve

Code 33
3 flashes, pause, 3 flashes

MAF Sensor
Have the mass air flow sensor replaced

Code 34
3 flashes, pause, 4 flashes

MAF Sensor Check for loose or damaged air duct, misadjusted minimum idle speed and cacuum leaks. &Inspect the MAF sensor and the electrical connections

Code 38
3 flashes, pause, 8 flashes

Brake Input Circuit
Check brake light switch connections, adjust OR replace switch

Code 39
3 flashes, pause, 9 flashes

Torque Converter Clutch
Check ECM connections, check for faulty Torque Conver Clutch solenoid

Code 41
3 flashes, pause, 1 flash

Cam Sensor
Check for faulty connections, or a faulty cam sensor. &Maybe also indicate a problem with the vehicle'* timing chain.

Code 42
4 flashes, pause, 2 flashes

Electronic Spark Timing
check for faulty connections, or a faulty ignition module

Code 43
4 flashes, pause, 3 flashes

Electronic Spark Control
Check for a faulty knock sensor, or Mem-Cal

Code 44
4 flashes, pause, 4 flashes

Lean Exhaust
Check the ECM wiring connections. &Check for vacuum leaks at the hoses and intake manifold gasket

Code 45
4 flashes, pause, 5 flashes


Rich Exhaust
Check the evaporative charcoal canister and its components for the presence of fuel

Code 46
4 flashes, pause, 6 flashes

Power Steering pressure switch Check for faulty connections, or a faulty switch

Code 48
4 flashes, pause 8 flashes

Misfire Diagnosis
Check the ignition and fuel systems

Code 51
5 flashes, pause, 1 flash

Prom or Mem-Cal
Make sure the MEM-Cal or prom is properly installed in the ECM. &Replace Mem-Cal or prom

Code 52
5 flashes, pause, 2 flashes

Cal-Pak
Check the Cal-Pak to insure properation. &replace the Cal-Pak

Code 55
5 flashes, pause, 5 flashes

ECM
Check for faulty connections. &Replace the ECM

Code 63
6 flashes, pause, 3 flashes

EGR Flow Check
Have vehicle serviced by a dealer

Code 64
6 flashes, pause, 4 flashes

Same as Code 63 Same as Code 63

Code 65
6 flashes, pause, 5 flashes

Same as Code 63
Same as Code 63
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Old 03-07-2008, 01:44 PM   #16
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If this is has been covered, I'm sorry. But check all your battery connections, both ends. Make sure everythings clean and tight. Also check for VAC leaks. With the number of codes you have, I would check those first.
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Old 03-07-2008, 03:19 PM   #17
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ITS YOUR MAF SENSOR. Thats what the LN3 does with a bad maf is either not run at all or it will be going down the highway and for no reason will JERK HARD and then fine for another while. mine did the same thing.

i dont see what made you think it was the transmission?

if you've got those codes, i wouldn't doubt the damn thing is jerking

just so you know, those codes are thrown as a result of the malfunctioning maf. that should fix it all.

make sure when you get one, if you get it from a jy, make sure to clean the filaments, GENTLY with a q-tip and some alcohol.
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Old 03-07-2008, 04:46 PM   #18
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Quote:
Originally Posted by wjcollier07
ITS YOUR MAF SENSOR. Thats what the LN3 does with a bad maf is either not run at all or it will be going down the highway and for no reason will JERK HARD and then fine for another while. mine did the same thing.

i dont see what made you think it was the transmission?

if you've got those codes, i wouldn't doubt the damn thing is jerking

just so you know, those codes are thrown as a result of the malfunctioning maf. that should fix it all.

make sure when you get one, if you get it from a jy, make sure to clean the filaments, GENTLY with a q-tip and some alcohol.
im 110% its NOT the maf as i have unplugged it and it ran the same. i switched it with 3 others i have and the same issue persist..


you would not believe what the peoblem was..

i am charging my camera battery and will post a pic in a lil while..

can anyone guess what it could have been.. its an easy but hard guess..
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Old 03-07-2008, 05:02 PM   #19
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OMG I know what it was!!!!!



Somebody put a FORD badge on it



hmmmm, I am gonna guess vacuum problem?
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Old 03-07-2008, 05:05 PM   #20
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ICM retaining nuts loose? Corrosion under the ICM?
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