Third Generation F-Body Message Boards

 
Page 1 of 10
1
2
3
4
5
Last »
Search: Posts Made By: Vader
Showing results 1 to 50 of 496
Search took 0.15 seconds.
Forum: Tech / General Engine
Today, 08:47 AM
Replies: 3
Views: 96
Posted By Vader

Re: Modulating Idle

And you MIGHT want to get an extra can of that carb cleaner. Use the first one to clean the throttle body bores, plates (front and back), and IAC air passages. It might even help to remove and...
Forum: Tech / General Engine
Today, 08:08 AM
Replies: 22
Views: 1,468
Posted By Vader

Re: 1982 Z28 Can't find replacement purge solenoid?

It's been said that these things don't grow on trees, but apparently, they do in the big online rain forest.

Did the replacement fit and operate? If so, your link is a great option, for as long as...
Forum: TPI
Yesterday, 08:28 AM
Replies: 13
Views: 194
Posted By Vader

Re: ECM/Fuel Pump inline fuse by battery

Presumably, when the ECM operates some output dependent on a turning/running engine, something is exceeding design current. If could be internal to the ECM, or it could be external. However, most...
Forum: TPI
05-14-2024, 07:00 AM
Replies: 13
Views: 194
Posted By Vader

Re: ECM/Fuel Pump inline fuse by battery

Possibly. The ECM, its wiring harnesses, or an external load could be damaged. If the ignition is turned on and the ALDL is NOT jumpered to read codes, what happens? How long before the fuse fails,...
Forum: Fabrication
05-13-2024, 08:55 AM
Replies: 48
Views: 2,159
Posted By Vader

Re: AWD 3rd gen build

An Astro/Safari driveline might get you around that axle position obstacle, I've had two, and the SBC is right over the front axle's position. But as you mentioned, the clearance under the hood...
Forum: TPI
05-13-2024, 08:31 AM
Replies: 13
Views: 194
Posted By Vader

Re: ECM/Fuel Pump inline fuse by battery

What is the resistance measurement with everything connected? If it is 400Ω or more, that could be completely normal as it would imply a 30mA parasitic draw by the ECM in its normal "asleep" state.
...
Forum: Tech / General Engine
05-13-2024, 08:19 AM
Replies: 12
Views: 340
Posted By Vader

Re: Carb troubles?

If you had all the parts, supplies, and equipment needed on hand, and about 4 hours to spare, it would be possible to perform a complete removal, disassembly, cleaning, reassembly and initial bench...
Forum: Tech / General Engine
05-12-2024, 09:56 PM
Replies: 12
Views: 340
Posted By Vader

Re: Carb troubles?

It seems I can hear the accelerator pedal being pumped to start it. If so, it's probably not over-rich at cold start. It may be time to verify the carb operation, from fuel bowl level to potential...
Forum: Tech / General Engine
05-12-2024, 06:13 AM
Replies: 12
Views: 340
Posted By Vader

Re: Carb troubles?

Whether the engine starts normally cold would be good information. I'm putting the cart way out ahead of the horse here, but I'm guessing it may be flooding. It's best to take a step at a time,...
Forum: Tech / General Engine
05-07-2024, 09:23 PM
Replies: 2
Views: 140
Posted By Vader

Re: Throttle Body Sheave removal

Removing may not be the difficult part. The end of the double-flatted throttle shaft on an LT1 can be ground so that the cable sheave can be pulled off, and then the bobbin and spring. Reattaching...
Forum: Tech / General Engine
05-06-2024, 08:10 AM
Replies: 5
Views: 157
Posted By Vader

Re: Starter won’t engage

If the car has a tilt steering column, place the wheel in the highest position, This can help take up any slack in the ignition switch linkage.
Forum: Tech / General Engine
05-06-2024, 07:57 AM
Replies: 19
Views: 582
Posted By Vader

Re: PCV Valve Delete and RMS Oil Leak - Thoughts?

That IS frustrating, I'm sure. Exactly what P/N seal are you using?

Did you happen to get a photo of the crank journal?
Forum: Tech / General Engine
05-04-2024, 09:03 AM
Replies: 5
Views: 212
Posted By Vader

Re: Balancer Humming.

Do you still have the old balancer? I think you might see where this is going.
Forum: TPI
05-04-2024, 08:51 AM
Replies: 4
Views: 147
Posted By Vader

Re: Fuel pump wiring issue

For diagnostic purposes, power can be fed to the pump via the blue wire at the relay, or through the "G" terminal on the ALDL connector under the dash. However, feeding through the ALDL requires...
Forum: Tech / General Engine
05-04-2024, 08:26 AM
Replies: 2
Views: 167
Posted By Vader

Re: Oil Pressure and Idle Issues

If the oil is also 5 years old, change it for something that you can be sure is clean, uncontaminated with moisture, and hasn't lost any fortifiers and polymers.
Forum: Tech / General Engine
04-30-2024, 07:37 AM
Replies: 5
Views: 352
Posted By Vader

Re: Pushrods went through rocker arms

To be fair, poor metallurgy can happen anywhere, It just seems to happen a lot more frequently as parts origins transition from Federal-Mogul to something more like Wal-Mart. It's fairly evident...
Forum: Tech / General Engine
04-29-2024, 08:16 AM
Replies: 1
Views: 136
Posted By Vader

Re: Car Randomly Wont Start

It there is compression, fuel, and ignition, about all that is left is the timing between all those events.
Forum: Tech / General Engine
04-28-2024, 04:08 PM
Replies: 5
Views: 352
Posted By Vader

Re: Pushrods went through rocker arms

First, it appears that there actually IS some oil on those rockers, so that may not be the issue.

Second, what kind of springs are under those retainers?

Third, I can only wonder what manner of...
Forum: TPI
04-26-2024, 09:50 AM
Replies: 2
Views: 137
Posted By Vader

Re: Fuel System Troubleshooting

Can you report the actual fuel pressure measurements? Stating that it is "good" can be very conditional.
Forum: Tech / General Engine
04-18-2024, 08:02 AM
Replies: 20
Views: 821
Posted By Vader

Re: Low Voltage to Distributor

Good work in tracking it down.

There is nothing more frustrating than aftermarket and/or customized systems that aren't documented. The word "hack" comes to mind. I've done full-on EFI...
Forum: Tech / General Engine
04-14-2024, 11:16 AM
Replies: 6
Views: 260
Posted By Vader

Re: Rough idle

If there is no external leak, the pump check valve may be leaking back. Fortunately, that's not a serious problem. The system has a two-second prime cycle for a reason. I had an S10 that did that...
Forum: Tech / General Engine
04-14-2024, 08:05 AM
Replies: 6
Views: 260
Posted By Vader

Re: Rough idle

No. The EGR system has no effect on the fuel pump, regulator, injectors, etc.

After al that, it sounds as if you were able to operate the pump, so what is the fuel pressure with the pump running?
Forum: Tech / General Engine
04-13-2024, 09:00 AM
Replies: 113
Views: 3,433
Posted By Vader

Re: Whats respectable street performance in 2024?

It seems that "respectable performance" in 2024 could be a range of 200 miles per charge. It's a moving target.
Forum: Tech / General Engine
04-11-2024, 09:54 PM
Replies: 7
Views: 298
Posted By Vader

Re: Smaller Wiper motor

Classic.

That's probably for those who are inclined to do a lot of Burt Reynolds style high-speed backing up on the freeway. In the rain.
Forum: Tech / General Engine
04-09-2024, 03:30 AM
Replies: 1
Views: 110
Posted By Vader

Re: Battery Relocation Wiring

One option, and there are several, would be to route a larger wire (like about AWG8) from the auxiliary power (orange wire), then install an add-on fuse panel, like a Buss 15600-04, and feed the...
Forum: Tech / General Engine
04-04-2024, 11:16 AM
Replies: 13
Views: 1,004
Posted By Vader

Re: Rotor pointing at no. 1 with the piston about 1/4" from TDC?

If the cam sprocket has nylon teeth, it's time to replace it. Aside from that, bear in mind these facts:

Both the ignition and valve timing events are generally expressed in degrees of crankshaft...
Forum: TPI
04-03-2024, 08:53 AM
Replies: 13
Views: 526
Posted By Vader

Re: Need help on connector for 1987 iroc

I have a Trans Am, which is partially semi-half-backward from the IROC. Positively identify the wire colors and you'll have your best hint.
Forum: TPI
04-02-2024, 08:22 AM
Replies: 13
Views: 526
Posted By Vader

Re: Need help on connector for 1987 iroc

It might also be the A.I.R. divert valve solenoid connector.
Forum: TPI
04-01-2024, 06:28 PM
Replies: 13
Views: 526
Posted By Vader

Re: Need help on connector for 1987 iroc

The angle and shadows make it difficult to determine. Is one of those wire a black/pink stripe, or something else?
Forum: Tech / General Engine
03-30-2024, 11:52 AM
Replies: 13
Views: 1,004
Posted By Vader

Re: Rotor pointing at no. 1 with the piston about 1/4" from TDC?

Chain stretch/cam timing is one potential issue, but when the timing mark on the balancer and timing cover tab indicate "TDC" and the piston is obviously not at TDC, the problem is not the chain, but...
Forum: Tech / General Engine
03-29-2024, 09:26 AM
Replies: 7
Views: 292
Posted By Vader

Re: Intake corrosion - how much is too much?

It COULD seal if a lot of cleaning is done. It's difficult to determine from the photo, but the depth of the corrosion might even require machining. I've had the same condition on some 60° V-6...
Forum: TPI
03-28-2024, 06:26 PM
Replies: 37
Views: 275
Posted By Vader

Re: No Spark to the coil

If you short the two meter leads while in an "ohms" scale, does the meter indicate zero?
Forum: TPI
03-27-2024, 08:06 AM
Replies: 6
Views: 237
Posted By Vader

Re: SPEED LIMITER

The transmission is not fully electronically controlled like many later designs. The only thing that is controlled in that manner is the TCC lockup/unlock. The rest is a function of balance between...
Forum: TPI
03-26-2024, 11:57 AM
Replies: 6
Views: 237
Posted By Vader

Re: SPEED LIMITER

I just checked a 1987 L98 binary w $32 mask from a 1987 GTA for verification. Rev limit is set to 10036.73, Speed limit is set to 255.00. I recall that some "regular" F-Bodies had MPH limits set at...
Forum: TPI
03-26-2024, 11:42 AM
Replies: 6
Views: 237
Posted By Vader

Re: SPEED LIMITER

Yes. However, it is a likely impractical limit. There is a value in the factory programming for fuel cutoff at a given VSS input converted to MPH, just as there is a fuel cutoff for engine RPM. The...
Forum: Tech / General Engine
03-26-2024, 09:38 AM
Replies: 21
Views: 16,984
Posted By Vader

Re: 2.5L 4 cylinder Firebird!?!?

The only visual reference easily located is in this:

https://www.youtube.com/watch?v=7cVlbpOy0Yk
Forum: Tech / General Engine
03-25-2024, 05:59 PM
Replies: 5
Views: 194
Posted By Vader

Re: LG4- Chasing Misfire and Rev Hang

Good call. However, from the binary files I've looked through, the park/neutral is usually defined as an adder to the base/target idle. Nonetheless, it could result in the overall idle or IAC steps...
Forum: Tech / General Engine
03-24-2024, 09:17 AM
Replies: 7
Views: 349
Posted By Vader

Re: Aftermarket Engine Blocks?

This seems to be going down the path of a 97 cubic inch 3-cylinder with multiple fans making 500HP. It's entertaining and educational to watch, as it shreds itself to scrap within a time period...
Forum: Tech / General Engine
03-21-2024, 10:09 AM
Replies: 5
Views: 194
Posted By Vader

Re: LG4- Chasing Misfire and Rev Hang

Does the carb have a high idle solenoid? If so, is that adjusted properly? It can be unplugged or removed for diagnosis of the issue.

Another thought is that the something is allowing extra air,...
Forum: Tech / General Engine
03-18-2024, 10:04 AM
Replies: 4
Views: 178
Posted By Vader

Re: Sad in Santa fe

This site is focused upon Third-Generation GM F-Body vehicles and their support. Despite the fact that Daimler-Chrysler was buying everything from QuadraJets and Saginaw steering gears/pumps to TH...
Forum: Tech / General Engine
03-11-2024, 05:46 PM
Replies: 5
Views: 207
Posted By Vader

Re: Firebird dies when idling

If it holds pressure for a few seconds, it's might be O.K.

If you block the fuel return line and cycle the pump, does the pressure maintain longer? If not, it could be the check valve in the...
Forum: Tech / General Engine
03-10-2024, 06:21 PM
Replies: 6
Views: 3,245
Posted By Vader

Re: Power windows wont go down

Check the wiring in the door jamb, from the A pillar to the door shell. Unfortunately, the interior of the door will probably have to be removed to access the wiring you need at the motor connector.
Forum: Tech / General Engine
03-09-2024, 04:21 PM
Replies: 5
Views: 207
Posted By Vader

Re: Firebird dies when idling

At the very least, it's a fire hazard. It may also be affecting operating fuel pressure.
Forum: Tech / General Engine
03-09-2024, 03:07 PM
Replies: 5
Views: 207
Posted By Vader

Re: Firebird dies when idling

A fuel pressure test would be a good idea.
Forum: Tech / General Engine
03-06-2024, 09:32 AM
Replies: 3
Views: 206
Posted By Vader

Re: 87’ V6 Surging Idle/Misfire

Do you have a fuel pressure measurement to share?
Forum: Tech / General Engine
03-04-2024, 05:30 PM
Replies: 6
Views: 483
Posted By Vader

Re: Want a good laugh?

It sounds like you are rectifying the head issue, but that always leads to the nagging question about just what the rest of it might look like.

Maybe you'll get lucky when you pull the heads and...
Forum: TPI
03-03-2024, 09:17 AM
Replies: 13
Views: 420
Posted By Vader

Re: What's the scoop on the various AFPR's?

I was thinking that 5 years was a relatively short life, and thought I had better experience, maybe more like 20 years or better. However, my memory has limitations, so I use other means to...
Forum: Tech / General Engine
02-27-2024, 08:20 PM
Replies: 10
Views: 536
Posted By Vader

Re: Is there a way to clean the gas tank?

I got into a batch of old tractors about two years ago. In the 30+ pieces of equipment, about 4 had run within the previous 5 years. Most of the rest I know hadn't been run since 2002 or earlier,...
Forum: TPI
02-26-2024, 05:43 PM
Replies: 1
Views: 165
Posted By Vader

Re: Speed density harness; Camaro or Firebird

It should be the same aside from the location of the battery, and thus, the inline ECM/fuel pump fuse. The body harness would be different yet, with the battery difference and the presence of...
Showing results 1 to 50 of 496
 
Page 1 of 10
1
2
3
4
5
Last »


 
Forum Jump


All times are GMT -5. The time now is 05:12 PM.