20 Most Recent 2000 Pontiac Bonneville Questions & Answers

That sound like where I would start looking first.

It sounds like the control valve is faulty, not opening fully or sticking. https://www.ebay.ca/sch/i.html?_from=R40&_trksid=p2334524.m570.l1313&_nkw=Heater+Controls+for+Pontiac+Bonneville+SE ..

Under the coil pack, there is an ignition module. Have a look to this link. https://easyautodiagnostics.com/gm/3.8L/ignition-coil-pack-tests-1 Hope it helps.

With an oil pressure gauge: Remove the oil sender unit and install an oil pressure gauge at the cold engine and let the engine warming up. And record oil pressure data. You will see if the oil pressure match your problems if so then there is an internal leak or bad oil pump or old engine oil. Hope it helps.

Open the left front door and between the 2 hinges, you can see where are the electrical wires see if any wires are open circuit by pulling on each wire. You will find your problems there. Hope it helps.

It could be the heat control valve (either black plastic, or brass) close to the fire wall with heater hoses running into, and out of it. Otherwise...the heater core.

I suggest you try one of those instant download manuals. My brother ( a mechanic) buys it when he can't fix some technical issue He buys from www.reliable-store.com . A lot of mechanics actually do this. Website is very good for this. Must try it !!

Download manual from here www.reliable-store.com

I think you have a shifter cable problem. Engine off. Put the shifter into gear back and forth if under the hood at transmission cable if it moves. There is an adjusting system on the cable could be stripped or not lock.(It pop up then free cable action). Hope it helps.

Having the module checked for DTC'S should be your first step. DTC B1000 ECU Malfunction Turn ON the ignition, with the engine OFF. Observe the display of the heater and A/C control. Does the heater and A/C control display only - - -? -- Yes - Go to Step 6 No - Go to Testing for Intermittent Conditions and Poor Connections 6 Notice: The circuit terminates at a flat wire connector. Use the J 42675 Flat Wire Probe Adapter Kit in order to avoid damage and properly test the circuit. Turn OFF the ignition. Disconnect the heater and A/C control. Turn ON the ignition, with the engine OFF. Measure the voltage from the KDD data circuit to a good ground. Does the voltage measure near the specified value? 1 Vdc Pin # 6 heater a/c control panel . Yes - Go to Step 7 No - Go to Step 10 The instrument panel module (IPM) communicates with the heater and A/C control via the keyboard display driver (KDD) data bus. This communication link is only used by the IPM and the heater and A/C control. 7 Notice: The circuit terminates at a flat wire connector. Use the J 42675 Flat Wire Probe Adapter Kit in order to avoid damage and properly test the circuit. Measure the frequency from the KDD clock circuit to a good ground. This is pin # 5 at the heater - A/C control head . Does the frequency measure near the specified value? 930 Hz YES - Go to Step 12 NO - Go to Step 11 11 Notice: The circuit terminates at a flat wire connector. Use the J 42675 Flat Wire Probe Adapter Kit in order to avoid damage and properly test the circuit. Test the KDD clock circuit for a short to voltage, a short to ground, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? -- YES - Go to Step 16 NO - Go to Step 13 12 Inspect for poor connections at the harness connector of the heater and A/C control. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? -- YES - Go to Step 16 NO - Go to Step 14 13 Inspect for poor connections at the harness connector of the IPM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? -- Go to Step 16 Go to Step 15 14 Replace the heater and A/C control. Refer to Control Assembly Replacement . Did you complete the replacement? -- Go to Step 16 -- 15 Replace the IPM. Refer to Instrument Panel Module Replacement in Body Control System. Did you complete the replacement? -- Go to Step 16 -- 16 Use the scan tool in order to clear the DTCs . Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset? -- Go to Step 2 System OK

replace the high tension cables and spark plugs

Check Engine Light flashing when accelerating ,severe engine misfire . Something in the ignition system is breaking down under a load . If the starter engages an spins the engine when you turn the key to start an it doesn't start an run , it has no spark or fuel pressure . If you don't know this or how to diagnose .suggest you take your vehicle to a qualified repair shop . Pull two plug wires off the top of the same coil an crank the engine , if you do not see a spark jump from one coil tower to the other you have an ignition system problem . ignition module or crankshaft position sensor Flashing check engine light CarMD

Should just have 2 bolts on each side where the hood attaches to the hinges and a wire if you have an under hood light.

It sounds like the pressure sensor is defective and intermittent. Gas gauges will do the same when the resistive element is broken or the wiper is not contacting clean any more.

**** it hard

check the window lock switch on the drivers door armrest . It may have been pushed .

Sounds like body control module. Did water get inside the car recently?

Double press and hold the entry button to reset all doors to open. The key fob as set itself to driver door only by the sounds of it.
Take the battery out and leave a few minutes, then insert and pair. ( driver door open )

when the lights go out when the key is in the run position , that indicates loose battery terminals, battery posts and terminals are black and not shiny clean and bad ground wire or just a bad battery have it load tested