Third Generation F-Body Message Boards

 
Page 1 of 3
1
2
3
Search: Posts Made By: Mark RWC
Showing results 1 to 50 of 142
Search took 0.04 seconds.
Forum: Body
01-18-2022, 12:28 AM
Replies: 16
Views: 1,322
Posted By Mark RWC

Re: lost keys hatch wont open

The original keys for the door lock work the hatch as long as the previous owner did not change the locks. The previous owner I bought from only had an ignition key so I made a door key and was...
Forum: V6
09-29-2021, 04:52 PM
Replies: 17
Views: 1,092
Posted By Mark RWC

Re: 2.8 Cooling issues

This is the wiring diagram for the V6 fan circuit. The fan relay is turned on by the ECM or computer. It runs the fan when A&B are jumpered on diagnostic port. This is an easy way to fan if the...
Forum: V6
08-25-2021, 09:12 PM
Replies: 26
Views: 973
Posted By Mark RWC

Re: 3.1 Still running like crap!

USB to serial adapter to add a serial port on newer pc or laptop without a serial port. Tripp Lite makes a USA19HS usb to serial adapter that works well. It can be found online at ebay etc.
Forum: V6
08-22-2021, 10:14 PM
Replies: 12
Views: 3,699
Posted By Mark RWC

Re: Unplugging Cold Start Injector

Since your car starts it is likely the cold start injector is working even with the voltage a bit low. There are videos of people using a 9 volt battery on a bench to pulse clean injectors. The cold...
Forum: V6
08-21-2021, 07:59 PM
Replies: 12
Views: 3,699
Posted By Mark RWC

Re: Unplugging Cold Start Injector

On a cold engine below 100 degrees 12vdc should present on the connector for the cold start injector when cranking the engine. On a warm engine over 100 degrees no voltage should be present when...
Forum: V6
08-21-2021, 06:46 PM
Replies: 12
Views: 3,699
Posted By Mark RWC

Re: Unplugging Cold Start Injector

Ricks Camaros shows it is out of stock with a price close to $300. If a new one is available it would be expensive. List of GM vehicles that used the same switch at the bottom of post. Someone in the...
Forum: V6
08-17-2021, 09:45 PM
Replies: 12
Views: 3,699
Posted By Mark RWC

Re: Unplugging Cold Start Injector

The cold start injector gets its power (+12v) from the ignition switch side of the starter solenoid.
On the front of the engine close to the thermostat housing and next to the Coolant Temperature...
Forum: V6
06-30-2021, 09:14 AM
Replies: 11
Views: 533
Posted By Mark RWC

Re: Help with a 2.8

Good to hear you resolved the coolant issue. Changing the oil at least twice to get any coolant out of places in the engine it does not belong would be a good idea. You also now have a spare intake...
Forum: V6
06-13-2021, 12:58 PM
Replies: 11
Views: 533
Posted By Mark RWC

Re: Help with a 2.8

Could the coolant be coming in through the throotle body? There are 2 small right angle coolant hoses that sometimes leak in the front of the engine. You might try bypassing these temporarily and see...
Forum: V6
06-11-2021, 02:44 PM
Replies: 11
Views: 533
Posted By Mark RWC

Re: Help with a 2.8

FelPro gaskets rarely fail when torqued to spec in the many years I have used them. Might a good idea to test for leaks on the intake manifold with smoke machine or similar homemade unit. Try...
Forum: V6
05-28-2021, 10:57 PM
Replies: 1
Views: 389
Posted By Mark RWC

Re: 2.8 v6 fuel line question

If the fuel pressure regulator is leaking mileage will drop and you will smell fuel. The regular is located under the plenum. It has a small hose that to supply vacuum to regulator. Check for fuel in...
Forum: V6
05-28-2021, 10:00 PM
Replies: 1
Views: 927
Posted By Mark RWC

Re: 88 Firebird 2.8 vacuum schematic?

This the vacuum diagram.
https://cimg7.ibsrv.net/gimg/www.thirdgen.org-vbulletin/649x429/vacuum_and_emission_system_86_89_v6_2_8_firebird_a4d2aac3cb866fb83a5ad490491fdce87aa9bd37.jpg
Forum: Electronics
01-30-2021, 12:37 PM
Replies: 8
Views: 632
Posted By Mark RWC

Re: Hatch motor issues questions ?

My 88 firebird uses the white wire off the relay to turn on the light in the hatch panel when the lift motor has the hatch in the lifted position.. The light also has a slide switch to turn on the...
Forum: V6
01-21-2021, 08:40 PM
Replies: 13
Views: 849
Posted By Mark RWC

Re: 91 V6 runs for 2 seconds and cuts out

https://cimg3.ibsrv.net/gimg/www.thirdgen.org-vbulletin/186x157/firebird_v6_firing_order_57666238dd7f028082621c272085371b1b6a1918.jpg
Number 1 is shown above.
Forum: Electronics
01-18-2021, 09:29 AM
Replies: 26
Views: 1,195
Posted By Mark RWC

Re: REAR HATCH MOTOR DOESENT WORK

Maybe the motor assembly again or possible the reversing switch inside since it only ran once.
Try testing motor with a fused wire direct to the battery or any other 12VDC power with enough amps to...
Forum: Electronics
01-17-2021, 08:00 PM
Replies: 26
Views: 1,195
Posted By Mark RWC

Re: REAR HATCH MOTOR DOESENT WORK

Now that you have motor runs you can close the hatch and test the motor operation. When you close the hatch and the motor pulls it down it should have a click when it stops. If this works go to the...
Forum: V6
01-11-2021, 04:09 PM
Replies: 3
Views: 310
Posted By Mark RWC

Re: TPS adjustment?

A search shows this TPS 213894 by AC DELCO fits 91Firebird 3.1
This TPS looks very similar to the TPS used on my 94 Silverado V8 throttle body. The mounting holes in the TPS sensor do not allow for...
Forum: Electronics
12-06-2020, 05:46 PM
Replies: 26
Views: 1,195
Posted By Mark RWC

Re: REAR HATCH MOTOR DOESENT WORK

It is highly unlikely there are 2 bad switches since it was working when you started.. Might be the motor. If you replaced it and have the old motor that was working try swapping new motor with old...
Forum: Electronics
12-05-2020, 01:08 PM
Replies: 26
Views: 1,195
Posted By Mark RWC

Re: REAR HATCH MOTOR DOESENT WORK

Did you push the black plastic piece down after applying the power?

Also try with reversing switch in both positions.
Forum: Electronics
12-03-2020, 07:52 PM
Replies: 26
Views: 1,195
Posted By Mark RWC

Re: REAR HATCH MOTOR DOESENT WORK

Photos of test connection out of vehicle. This is an old parts unit being saved just in case a usable part is needed later on....
Forum: Electronics
12-03-2020, 06:58 PM
Replies: 26
Views: 1,195
Posted By Mark RWC

Re: REAR HATCH MOTOR DOESENT WORK

I bench tested a used unit from the junkyard with a 12 volt power supply. Most guys probably do not have a 12 VDC supply so you could use the battery with 10 amp in line fuse connected to test the...
Forum: Electronics
11-25-2020, 04:31 PM
Replies: 26
Views: 1,195
Posted By Mark RWC

Re: REAR HATCH MOTOR DOESENT WORK

Below is a link to a rebuild video with some tips from someone doing his first lift motor assembly repair.

82-92 CAMARO FIREBIRD HATCH PULL DOWN MOTOR REPLACEMENT - YouTube82-92 CAMARO FIREBIRD...
Forum: Electronics
11-24-2020, 07:30 PM
Replies: 26
Views: 1,195
Posted By Mark RWC

Re: REAR HATCH MOTOR DOESENT WORK

The large black wire the plugs into the hatch release solenoid is probably sending +12VDC to the solenoid from the release button on your dash. There is black wire with a ring terminal that connects...
Forum: Electronics
11-24-2020, 12:26 PM
Replies: 26
Views: 1,195
Posted By Mark RWC

Re: REAR HATCH MOTOR DOESENT WORK

If this is a new unit it should be returned. If you sure you have +12VDC incoming on the red wire and your grounds connected to the metal the motor should run when the black plastic piece is...
Forum: Electronics
11-22-2020, 06:54 PM
Replies: 26
Views: 1,195
Posted By Mark RWC

Re: REAR HATCH MOTOR DOESENT WORK

The red wire is 12VDC positive feed and it should always have power. There are 3 wires that are ground to metal near the hatch motor assembly with sheet metal screws. You can test the hatch motor by...
Forum: V6
10-17-2020, 06:25 PM
Replies: 1
Views: 452
Posted By Mark RWC

Re: Starting issues 2.8 v6

Have you tested your fuel pressure after the work you did? It is possible to mix up the fuel feed and return lines when reinstalling the tank. Injectors including the cold start injector are possible...
Forum: V6
09-30-2020, 03:04 PM
Replies: 1
Views: 401
Posted By Mark RWC

Re: Cold Idle Problem

Car requires more fuel when cold so check fuel pressure. Idle Air Control and Throttle Position Sensor are possible issue. Check for vacuum leak with spray of carb cleaner when cold.
Forum: V6
09-23-2020, 12:33 PM
Replies: 4
Views: 1,552
Posted By Mark RWC

Re: Small fire center console Neutral safety switch melted

Scooter that is an excellent idea to remove the high current 10 amps draw from starter solenoid that runs through the neutral safety switch. Did you install another fusible link and high current 15...
Forum: V6
09-22-2020, 11:26 PM
Replies: 4
Views: 1,552
Posted By Mark RWC

Small fire center console Neutral safety switch melted

About a week ago after starting my Firebird 2.8 V6 automatic I noticed a smell of smoke after the engine started. It was soon apparent it was coming from the center console. Shut off the engine and...
Forum: V6
08-29-2020, 09:57 PM
Replies: 9
Views: 582
Posted By Mark RWC

Re: Throttle body/FPR lines

The fuel regulator uses engine vacuum. A vacuum hose attaches to the regulator housing. My guess is that is the hose that is not currently connected. See attached photo....
Forum: V6
08-20-2020, 02:07 PM
Replies: 18
Views: 786
Posted By Mark RWC

Re: Radiator Fan

There is a drain plug on the side of the block that I used to flush the antifreeze but do not know the thread it uses.
Forum: V6
08-16-2020, 06:57 PM
Replies: 6
Views: 480
Posted By Mark RWC

Re: Clunking under hood while driving — possible bad motor mount?

Lots of things including bad engine or transmission mounts can cause clunking sounds on a 28 year old vehicle. A link to a video on diagnosing bad mounts is at the end of this reply. Loose or failing...
Forum: V6
08-13-2020, 03:08 PM
Replies: 18
Views: 786
Posted By Mark RWC

Re: Radiator Fan

Bob suggested using the one that connects to the head temperature switch as it probably the easiest place and will look the cleanest to connect your new wire going to your new manual switch.
Forum: V6
08-13-2020, 01:23 PM
Replies: 18
Views: 786
Posted By Mark RWC

Re: Radiator Fan

Run one wire from F terminal of the relay to one side of your new switch. Then connect the other side of your new switch to any ground like the metal on the firewall or any other place that easy....
Forum: V6
08-13-2020, 09:02 AM
Replies: 18
Views: 786
Posted By Mark RWC

Re: Radiator Fan

The fan turns on a about 230 higher temperature than you would expect. Cars with AC turn it on when AC running. My friend is an original owner of an 89 Firebird and hardly ever heard her fan run...
Forum: V6
08-13-2020, 08:30 AM
Replies: 18
Views: 786
Posted By Mark RWC

Re: Radiator Fan

Do not see the diagram you are referring to. The fan relay coil is what you should be using. I do not have a diagram available but am thinking the coil has positive 12 volts at the coil and ground is...
Forum: V6
08-12-2020, 07:55 PM
Replies: 18
Views: 786
Posted By Mark RWC

Re: Radiator Fan

Did you wire the fan using the existing fan relay? The fan current draw is a factor as some fans draw 10 amps. If you wired the fan with new switch power going straight to the fan this might be your...
Forum: V6
05-25-2020, 11:15 PM
Replies: 2
Views: 1,933
Posted By Mark RWC

Re: Steering column

There are 2 rods in the column. One is for the high/low beam switch. The other is the ignition switch actuator rod.

https://www.justanswer.com/uploads/ebrock63/2008-04-14_203957_column.png
Forum: V6
04-16-2020, 03:12 PM
Replies: 9
Views: 1,745
Posted By Mark RWC

Re: 2.8l vacuum line passenger side intake

Your other post says car will not start. Get a can of starting fluid. Spray into the intake and see if the engine starts. Does it starts and then stalls with starting fluid? If it starts and stalls...
Forum: V6
04-11-2020, 10:45 PM
Replies: 9
Views: 1,745
Posted By Mark RWC

Re: 2.8l vacuum line passenger side intake

If the car sat for a long time the gas may be bad especially gas with ethanol mixed in at the pump. Gas with ethanol can go bad in 3 months.
Forum: V6
04-11-2020, 01:40 PM
Replies: 11
Views: 3,428
Posted By Mark RWC

Re: 1989 Pontiac Firebird 2.8l EGR Valve Solenoid

Got a chance to look at the 4 wire connector for the Electronic Vacuum Regulator Switch next to the ignition coil. The solenoid coil wires are pink/black and grey. Remove the connector and use a...
Forum: V6
04-11-2020, 11:47 AM
Replies: 9
Views: 1,745
Posted By Mark RWC

Re: 2.8l vacuum line passenger side intake

The photo is from 88 2.8 Firebird. The missing vacuum line on this goes to a tee that splits off. One side of the T has a small plastic tube that goes into the wiring harness and into the car for the...
Forum: V6
04-10-2020, 11:08 PM
Replies: 11
Views: 3,428
Posted By Mark RWC

Re: 1989 Pontiac Firebird 2.8l EGR Valve Solenoid

https://cimg3.ibsrv.net/gimg/www.thirdgen.org-vbulletin/2000x1124/firebird_88_erg_and_erg_solenoid_67b0188672e1b5a85fba99f7e73f708a6c005586.jpg
88Firebird V6 auto ERG &ERG solenoid
Forum: V6
04-10-2020, 10:31 PM
Replies: 11
Views: 3,428
Posted By Mark RWC

Re: 1989 Pontiac Firebird 2.8l EGR Valve Solenoid

https://cimg5.ibsrv.net/gimg/www.thirdgen.org-vbulletin/1460x2000/firebird_2_8_erg_and_erg_solenoid_ed166767088f2723f1b51edecfcc0cd94a43eca8.jpeg
ERG and ERG solenoid Firebird 2.8
Forum: V6
04-10-2020, 10:07 PM
Replies: 11
Views: 3,428
Posted By Mark RWC

Re: 1989 Pontiac Firebird 2.8l EGR Valve Solenoid

Carb cleaner can be sprayed on the vacuum lines. If the engine speed changes when area is sprayed there is a leak. This method is hazardous so you should have a fire extinguisher on hand. A visual...
Forum: V6
04-10-2020, 04:58 PM
Replies: 11
Views: 3,428
Posted By Mark RWC

Re: 1989 Pontiac Firebird 2.8l EGR Valve Solenoid

Yes the egr solenoid is highlighted in red. Have you checked the codes yourself? Check vacuum lines for good connection and hoses for cracking on hoses to the egr solenoid and egr. Try unbolting the...
Forum: V6
12-08-2018, 07:08 PM
Replies: 33
Views: 1,219
Posted By Mark RWC

Re: Crank, no spark. Stumped. Need gurus!

Did you check to see if the 12 volts at coil is not there when cranking? Below is a link to a no start diagnose video on a GMC

https://www.youtube.com/watch?v=PvVgu6E_z4w
Forum: V6
12-06-2018, 11:47 PM
Replies: 33
Views: 1,219
Posted By Mark RWC

Re: Crank, no spark. Stumped. Need gurus!

Cold start injector on V6 located rear of engine next to distributor. It is controlled via cold start switch in front of the engine next to CTS. If the cold start was not working the engine would...
Forum: V6
12-06-2018, 11:15 PM
Replies: 33
Views: 1,219
Posted By Mark RWC

Re: Crank, no spark. Stumped. Need gurus!

I had my ignition switch fail on my 88 firebird without the anti theft you are dealing with. The car stalled on several occasions but usually restarted. Then it stalled and would crank but would not...
Forum: V6
12-06-2018, 10:31 PM
Replies: 33
Views: 1,219
Posted By Mark RWC

Re: Crank, no spark. Stumped. Need gurus!

Might be the ignition switch was failing when you first stalled. Sometimes the switch is intermittent before completely failing. Contact on the switch do wear out.
Showing results 1 to 50 of 142
 
Page 1 of 3
1
2
3


 
Forum Jump


All times are GMT -5. The time now is 06:23 AM.