Buick Regal - Recent Questions, Troubleshooting & Support - Page 10

You mean 4,000 rpm . No engine goes 40,000 rpm . senor on the transmission that control the rpm. No SENSOR on the transmission ! Crank sensor's Take it to someone who has a tool like in the video an knows what he is looking at . Ignition Scan data

There is a reason, and testing will reveal that.

Pull the cluster out and have it rebuilt.

The combination switch is the one that will cause this, not the main light switch.

how do I change a fuel pump on a Buick electra park avenue?

You have two on related problems , just a coincidence they stoped at the same time . The cable inside the cruise control module is probably broken , this cable is connected to the cable that opens the throttle . I'll post a video to show you what i'm talking about ! No Cruise Control Buick LeSabre You can buy this part for $10 to $20 buck ! Change it out in 10 min. Now your other problem is the Blower motor isn't blowing air out of the vents ? The way you describe it working then on high only an now not at all this could be the motor . Unless the motor was bad enough to take out the blower motor resistor an the high speed relay as well. Testing would need to be done to find the problem ! Blower Motor Problems Auto Repair Help If you are willing to test the blower motor and electrical circuit you can find free wiring diagrams here http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model and engine size . Under system click on HVAC , then under subsystem HVAC controls will pop up . Click the search button ,then the second blue link . Unless your's has automatic ,then it will have blower motor control processor .

check the linkage

When you get the doors unlocked, simply unplug the lock servos (motors) inside the door panels. The locks will still work manually and with the key. If they don't work with the key, then remove the linkage from the servo, to isolate the power lock function from the lock mechanism. Test the key while the door panels are off to avoid having to take them off twice to remove the linkage

I need the fault codes. Without the codes I can't help, just to many possibilities. Have never heard of any fault code that cited Auxiliary emission control sensors" in my 35 years of emission repair on all makes and models. Sooooo... have the fault code(s) read again and write them down. Autozone does this test for free.

Testing Electric Fuel Pump Problems with Voltage Drop Test Fuel Pump Amperage Draw Test Fuel Pump Current Ramp

I think you can remove broken handle from outside car. If so open door when the rods are exposed.

It's probably a bad internal mode switch . The sensor is input to the PCM - engine computer . The lever assembly-manual shaft detent with internal mode switch (IMS) is a sliding contact electrical switch assembly that corresponds to the PRNDL position selected. Each of the PRNDL positions has a unique ground pattern on four wires from the PCM. The assembly consists of two major components: • The internal mode switch that consists of: - The housing (1), which makes up the stationary contacts. - The insulator (2), which makes up the moving contacts and is secured on the detent lever (4). • The lever assembly which consists of: - The manual shaft (3) - The detent lever (4) The range detection is accomplished by securing the moving contacts to the detent lever. When the driver selects a PRNDL position, the detent lever inside the transmission rotates. This rotates the insulator which in turn grounds the four wires in a unique pattern for each gear selection, corresponding to the PRNDL position selected. The IMS is electrically connected by five wires (four of which the PCM supplies voltage to and one wire that is a common ground) to the transmission pass through connector. Range Selector Displays Incorrect Range The transmission internal mode switch (IMS) is a sliding contact switch attached to the selector detent inside the transmission side cover. The four inputs to the PCM indicate the position of the transmission range selector. The input voltage level at the PCM is high, B+, when the IMS is open and low when the switch is closed to ground. The four input parameters represented are Signals A, B, C and P, Parity. Refer to Transmission Internal Mode Switch Logic . 1 Install a scan tool. Turn ON the ignition, with the engine OFF. Select IMS on the scan tool. Place the range selector in each transmission range: P, R, N, D4, D3, D2 and D1. Does each range selected match the scan tool IMS display? -- Go to Powertrain Control Module Replacement in Engine Controls - 3.1L or Intermittent Conditions in Engine Controls - 3.8L Go to Step 2 2 Select IMS A/B/C/P on the scan tool. Place the range selector in each transmission range: P, R, N, D4, D3, D2 and D1. Does the IMS A/B/C/P display the specified values for each range? HI/HI/HI/HI Go to Step 12 Go to Step 3 Your best bet , take it to a qualified repair shop !

have a compression test done to check for head gasket/ cracked heads problem have a flow test done to check pon radiator condition was the coolant temp sensor replaced or was it the single gauge sender unit replaced

http://www.bbbind.com/free_tsb.html free wiring diagrams ! Enter vehicle info. year , make , model an engine size . Under system click on engine ,then under subsystem click on fuel controls . Then click the search button , then click blue link .The 7th diagram down shows two fuel pump relays , This I have not seen before ! One is speed cont. relay an the other is just fuel pump relay ? The speed control one has a resistor in the electrical circuit . That is way your droping voltage . Fuel Pump Electrical Circuit Diagnosis (VIN K) Fuel Pump Electrical Circuit Diagnosis (VIN 1) The PCM alters fuel pump speed by energizing the fuel pump speed control relay. Under normal conditions, the fuel pump speed control relay is energized. The applied voltage to the fuel pump is controlled by a resistor assembly. When higher fuel volume is required due to increased engine load, MAP sensor value over 90 kPa the PCM de-energizes the fuel pump speed control relay circuit. The increased voltage to the in-tank fuel pump allows a higher volume of fuel to be delivered to the fuel rail. The PCM also compensates for low system voltage by energizing the fuel pump speed control relay. Have it check for codes ! Did DTC P0230 or DTC 1260 set? -- Go to DTC P0230 Fuel Pump Relay Control Circuit or DTC P1260 Fuel Pump Speed Relay Control Circuit Go to Step 3

That doesn't sound like buick dealer response , not with the tools they have at thier disposal . This sounds like a ignition control module or one of the crankshaft position sensors (has two ) or possibly the cam position sensor . The buick dealer tech's should have a tool like this . How to test crank sensor on GM 3800 engine 3x and 18x signals