Question about 1989 Buick LeSabre

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1989 buick is not running right

When I crank it its ok but as i put in gear it act as if it doesn't want to pull i just had a ignition module, fuel pump, mass airflow meter, Cadillac converter, gas treatment, oil change, and the air filter replaced i just cant figure out whats wrong it it. it cuts off every time its idle.

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Did you check the IAC Valve, (Idle Air Control), TPS (Throttle Position Sensor) or change the fuel filter. Any Service Engine Soon light.

Posted on May 27, 2010

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1 Answer

Why does my 94 buick stops running for no reason, acts like it is running out of gas


Could be anything electrical. A weak relay, the coil pack or ignition module, and so on.
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Jun 15, 2017 | 1989 Buick Century

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I haved a 1989 Buick Park Avenue 3.8 engine...I have replaced the starter, coil pack, ignition module, crank sensor and cam sensor and still cannot get it to fire...I really NEED this car to run so PLEASE...


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Oct 29, 2011 | 1989 Buick Park Avenue

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2000 buick lasabre kills while driving, it doesn't do it everytime, and when it does it i can pull over and it will start right back up and not do it again for a week. not really sure if it is the...


It doesn't sound like an ignition module or crankshaft sensor because normally problems with either would result in a no start condition. My first thought is a loose or dirty connection in the wiring that causes an intermittent lack of fuel or ignition.

Aug 27, 2011 | 1997 Buick LeSabre

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1989 Buick intermitent engine problem Buick Regal 3.1 V6 8th vin. T in nostart condition no fire @plugs no fuel pressure when cranking . Replaced : crank sensor ECM Ignition module ignition switch...


You did'nt say if you have had the car (Scanned) to see if the engine control Module has stored any fault codes. You say it runs 20 miles or so before it quits. After cooling does it alawys start back up? What have you been doing to get it running again? The ECM can warm up and quit. It'll get an Troblem code about though. The no spark at the time sort of removes the Cat converter overheating and the ingtion Module ( (the coils are mounted to it). Something getting too hot is likly. Crank sensers and cam sensers both wil do this the crank senser is on the back of the block just above the oil pan. The cam sewnser is underneath the power steering pump and the connector going to it is on top of the front valve cover on the passenger side. Crank sensers will not code and still be bad. Computers if they come back on ever they will code most any problem and the code name is Quad driver failure.

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Cant Find a list of codes 1989 Buick Century. Car stalls and has a rough idle. coads are 31 43 and 44


Here is a code list for you. Remember this doesn't always mena a sensor issue, the problem can be in the wiring as well, or in the case of a lean code you may have an actual lean condition due to a vacuum leak at the intake or vacuum hoses or connections. I have highlighted your fault codes and added extra notes.
GM common codes for OBD1 (for vehicles made before 1995)
12 System normal
13 oxygen sensor circuit open
14 coolant sensor high resistance or shorted
15 coolant sensor circuit low or open
16 direct ignition system (DIS) fault in circuit
17 cam position sensor fault
18 crank or cam sensor error
19 crank sensor circuit fault
21 tps sensor out of range
22 tps sensor signal voltage low
23 intake air temp sensor out of range, low
24 vehicle speed (vss) sensor circuit fault
25 air temp sensor sensor out of range, high
26 quad-driver module (computer) circuit #1 fault
27 quad-driver module (computer) 2nd gear circuit
28 quad-driver module (computer) circuit #2 fault
29 quad driver module (computer) 4th gear circuit
31 camshaft position sensor fault
32 egr circuit fault
33 map sensor signal out of range, high
34 map sensor signal out of range, low
35 idle air control sensor circuit fault
36 ignition system circuit error
38 brake input circuit fault
39 clutch input circuit fault
41 cam sensor circuit fault, igntion control circuit fault
42 electronic spark timing (EST) circuit grounded
43 knock sensor malfunction or electronic spark control (ESC) circuit fault (ignore this for now)
44 oxygen sensor lean exhaust (make sure you no engine vacuum leaks)

45 oxygen sensor rich exhaust
46 pass-key II circuit or ps.pressure switch circuit fault
47 pcm-bcm data circuit
48 misfire diagnosis
51 calibration error, mem-cal, ecm or eeprom failure
52 engine oil temperature circuit, low temperature indicated
53 battery voltage error or egr or pass-key II circuit
54 egr system failure or fuel pump circuit low voltage
55 a/d converter error or pcm not grounded or lean fuel or frounded reference voltage
56 quad-driver module #2 circuit
57 boost control problem
58 vehicle anti-theft system fuel enable circuit
61 a/c system performance or degraded oxygen sensor signal
62 engine oil temperature high temperature indicated
63 oxygen sensor right side circuit open or map sensor out of range
64 oxygen sensor right side lean exhaust indicated
65 oxygen sensor right side rich exhaust indicated
66 a/c pressure sensor circuit low pressure
67 a/c pressure sensor circuit or a/c clutch circuit failure
68 a/c compressor relay circuit failure
69 a/c clutch circuit head pressure high
70 a/c refrigerant pressure circuit high
71 a/c evaporator temperature sensor circuit low
72 gear selector switch circuit
73 a/c evaporator temperature circuit high
75 digital egr #1 solenoid error
76 digital egr #2 solenoid error
77 digital egr #3 solenoid error
79 vehicle speed sensor (vss) circuit signal high
80 vehicle speed sensor (vss) circuit signal low
81 brake input circuit fault
82 ignition control (IC) 3X signal error
85 prom error
86 analog/digital ecm error
87 eeprom error
99 power management

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1 Answer

F150 cranks but wont start. Yesterday I drove < 1 mile, turned off, woldn't start. Came back 45 min later= fired up and drove home. Swapped out coil and then cranked but no start. This a.m. fired right...


Hi, You did not mention what size engine is in this vehicle or mileage, but your starting issue sounds like it is related to the ignition control module. I am assuming the fuel pressure is ok at this point. The control modules are known to act up over time and can cause a driveability problem that your experiencing. The module will look like this;


2c9d104.jpg

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1 Answer

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sounds like the ignition module but it could be a fuel problem

Jan 10, 2009 | 1989 Buick LeSabre

2 Answers

1989 chevy g20 STALLING


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1 Answer

Fuel


Try ignition module go to this site to show you how.

mhttp://www.autozone.com/shopping/repairGuide.htm?
pageId=0900c15280067bbc

Dec 03, 2008 | 1989 Buick Electra

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