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Search: Posts Made By: Rolling Thunder
Showing results 1 to 50 of 499
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Forum: Tech / General Engine
04-10-2021, 04:00 AM
Replies: 3
Views: 269
Posted By Rolling Thunder

Re: Starting Issues

I would start by spraying some starter fluid in the carb and see if it starts. That will at least tell you if you have a fuel problem or an ignition problem.
Forum: Tech / General Engine
04-09-2021, 12:34 PM
Replies: 10
Views: 766
Posted By Rolling Thunder

Re: Bad Fuel Economy 1987 350 TPI

My money's on the fuel pressure regulator. It's controlled by engine vacuum and when the diaphragm ruptures it starts dumping gas into the intake manifold. This causes the engine to run poorly, black...
Forum: Exterior Parts for Sale
04-03-2021, 11:30 PM
Replies: 2
Views: 749
Posted By Rolling Thunder

T-Tops, GM and Cars and Concepts

I have some old t-tops salvaged from cars that are long gone. Since I no longer have any T-top cars, I guess I don't really need them hanging around anymore. I have one complete set of GM glass...
Forum: Tech / General Engine
03-03-2015, 09:32 PM
Replies: 17
Views: 666
Posted By Rolling Thunder

Re: Fuel. Spark. No start. Tired of this!

I agree with the statement above. I'm curious to know how you set the timing or why you think its correct. Also, I want to point out while you may have fuel pressure that doesn't mean you necessarily...
Forum: Tech / General Engine
03-03-2015, 09:23 PM
Replies: 7
Views: 415
Posted By Rolling Thunder

Re: Another Issue 92 Formula

lol You and the rest of the world. Funny thing about troubleshooting is many times the problem is overlooked simply put because it was a new part or something that was already checked or assumed to...
Forum: Tech / General Engine
03-03-2015, 07:41 PM
Replies: 7
Views: 415
Posted By Rolling Thunder

Re: Another Issue 92 Formula

I think we really need to ID what actually quit, fuel or spark. I recommend just shooting some starter fluid in the motor and see if it fires. That will tell us if this is a fuel or ignition...
Forum: Tech / General Engine
03-03-2015, 07:33 PM
Replies: 13
Views: 9,869
Posted By Rolling Thunder

Re: No Start/no injector pulse

First if the ICM was recently replace I would still be suspicious of it. If for example the thermal paste was not applied properly it will fail in fairly short order.

As for as why the fuse blew?...
Forum: Electronics
03-02-2015, 10:10 PM
Replies: 1
Views: 492
Posted By Rolling Thunder

Re: serious electrical problem with vatts

Sounds like you have a few issues. If you turn the key and it does nothing yea VATs is probably the issue and i would guess its a bad connection in the ignition cylinder. Common issue easy to measure...
Forum: Tech / General Engine
03-02-2015, 09:48 PM
Replies: 13
Views: 9,869
Posted By Rolling Thunder

Re: No Start/no injector pulse

Also one other thing, while your coil may ohm out which is a good sign that signal is conditioned in the ignition control module before being sent to the ECM. Even if you have a good pulse from the...
Forum: Tech / General Engine
03-02-2015, 09:44 PM
Replies: 13
Views: 9,869
Posted By Rolling Thunder

Re: No Start/no injector pulse

Frequency output will be relative to engine RPM (revolutions per minute). There will be four pulses per rev. Frequency is cycles per second. so 500 RPMs = (500 RPMs * 4 pulses per rev ) / 60 (to...
Forum: Tech / General Engine
03-02-2015, 09:32 PM
Replies: 14
Views: 1,775
Posted By Rolling Thunder

Re: Need help identifying sensor and it's purpose

Once upon a time that vacuum switch used to control your thermac valve. I cant really see from the picture if you have the factory air cleaner but the thermac valve is a valve in the air cleaner that...
Forum: Tech / General Engine
03-02-2015, 09:17 PM
Replies: 7
Views: 808
Posted By Rolling Thunder

Re: 2-3 Year plan for 85 iroc

Congratulations on your purchase and I'm glad to see that your starting with a plan. This will save much pain and suffering later.

First off, I think we need to understand a little bit more...
Forum: Tech / General Engine
02-25-2015, 09:21 PM
Replies: 13
Views: 9,869
Posted By Rolling Thunder

Re: No Start/no injector pulse

See the attached photo of the ignition control module wiring. You'll see the ICM on the left and the ECM on the right. On the left you see the item labeled "pick up coil". That induces pulses as...
Forum: Electronics
02-25-2015, 08:35 PM
Replies: 2
Views: 414
Posted By Rolling Thunder

Re: Fuel pump

These engines have an oil pressure bypass switch to provide power to the fuel pump even if the relay is not cooperating. Probably noticed it took a little longer to start?
Forum: Tech / General Engine
02-25-2015, 08:09 PM
Replies: 14
Views: 1,335
Posted By Rolling Thunder

Re: 305 loud pop & oil everywhere

Is it possible you accidentally put two oil filters gaskets on? Sometimes the old gasket sticks to the block and if your not careful and just put the new filter on it will blow out. Easy mistake to...
Forum: Tech / General Engine
02-19-2015, 08:09 PM
Replies: 14
Views: 697
Posted By Rolling Thunder

Re: Cooling Fan Sensor Switch

Well hear me out here. Something doesn't quite make scene here. I think either the sensor is actually not failing as thought or there is something wrong in the circuit causing it to fail.

Because...
Forum: Tech / General Engine
02-17-2015, 10:24 PM
Replies: 9
Views: 1,117
Posted By Rolling Thunder

Re: L69 mod questions

I have to agree with the above statement. The exhaust on third gens is notoriously poor. Work here will give you a decent bang for your buck. The heads on an L-69 aren't half bad especially for a...
Forum: Tech / General Engine
02-17-2015, 09:49 PM
Replies: 14
Views: 697
Posted By Rolling Thunder

Re: Cooling Fan Sensor Switch

I realize that there can be a significant difference in quality when looking at aftermarket parts but I have to be honest, I'm skeptical thats the cause. I have a few suggestions for you.

First,...
Forum: TPI
02-17-2015, 09:08 PM
Replies: 8
Views: 637
Posted By Rolling Thunder

Re: Distributor question

That connector does plug into the distributor. That is the tachometer signal wire.
Forum: TPI
02-16-2015, 08:03 PM
Replies: 2
Views: 567
Posted By Rolling Thunder

Re: No Idle, excessive fuel, black smoke, loss of power

Check the fuel pressure, fuel pressure regulator diaphragm, and the vacuum line going between the FPR and manifold. Also try dissconnecting the MAF sensor. Lastly, If i recall correctly the ECM will...
Forum: TPI
02-16-2015, 07:47 PM
Replies: 1
Views: 356
Posted By Rolling Thunder

Re: Any Ideas on this one?

I believe this is a inherent design issue with the HSR. Try doing a quick search and I think youll find several complaints about the rear cylinders running rich on the HSR. Still, couldnt hurt to...
Forum: TPI
02-16-2015, 07:22 PM
Replies: 5
Views: 553
Posted By Rolling Thunder

Re: Need help completely lost.

I'm guessing their is a good chance you have a check engine light is on? What codes do you have? Second was this issue present before you changed all that stuff or was that all done in an attempt to...
Forum: TPI
10-17-2014, 07:54 PM
Replies: 2
Views: 569
Posted By Rolling Thunder

Re: 86 TA LB9 issues/ideas

I kind of question the head gasket diagnosis. A blown head gasket may cause the car to overheat but there are good number of other things that come along with it like perhaps water in the oil or a...
Forum: Tech / General Engine
10-17-2014, 07:25 PM
Replies: 1
Views: 380
Posted By Rolling Thunder

Re: Purge canister question.

Unfortunately I don't believe the charcoal canister is the source of your issue. Way back in the day gas tanks used to be vented directly to the atmosphere through the gas cap. This allowed a lot of...
Forum: TPI
07-29-2014, 11:28 PM
Replies: 32
Views: 1,493
Posted By Rolling Thunder

Re: No start with fuel and spark

Well I see what you mean and maybe its just a difference in terminology. The link below actually has some photos of a factory manual that explains in depth what this code means. Basically the ECM...
Forum: Tech / General Engine
07-29-2014, 10:35 PM
Replies: 6
Views: 718
Posted By Rolling Thunder

Re: battery goes dead if it sits overnight

I agree with what other have posted, check all lights. I personally have had issues with glove box lights (especially since our glove box lids don't seem to hold up too well) and trunk lights. If...
Forum: TPI
07-29-2014, 10:18 PM
Replies: 32
Views: 1,493
Posted By Rolling Thunder

Re: No start with fuel and spark

A few comments, first I am a little confused about the code 13/44. You are correct 44 indicates a lean condition (O2 sensor reads less than .2V for more than 50 seconds) but code 13 indicates no...
Forum: Transmissions and Drivetrain
07-29-2014, 09:12 PM
Replies: 18
Views: 722
Posted By Rolling Thunder

Re: Guys I'm Stumped, my car wont stay running and it may be my Megashifter pics insi

Your relay has two terminals for the coil and then a set of normally open and normally closed contacts. Most likely the normally closed contacts are not used.
Forum: TPI
07-28-2014, 09:54 PM
Replies: 32
Views: 1,493
Posted By Rolling Thunder

Re: No start with fuel and spark

Well first things first, when the weather clears up set the ignition timing. Also again make sure you disconnect the EST line other wise the ECM will try to adjust the timing while your trying to set...
Forum: Transmissions and Drivetrain
07-28-2014, 09:43 PM
Replies: 18
Views: 722
Posted By Rolling Thunder

Re: Guys I'm Stumped, my car wont stay running and it may be my Megashifter pics insi

You are correct it should not kill the car while its running. I believe you have two separate issues. I know the ECM does have an input for the transmission selector switch however I don't believe it...
Forum: Transmissions and Drivetrain
07-28-2014, 09:22 PM
Replies: 18
Views: 722
Posted By Rolling Thunder

Re: Guys I'm Stumped, my car wont stay running and it may be my Megashifter pics insi

Since that does not appear to be a factory relay we really need to know more about what its connected to. and you tell us what wires went where? I'm guessing its an issue with the N/P safety switch.
Forum: Tech / General Engine
07-28-2014, 09:03 PM
Replies: 3
Views: 378
Posted By Rolling Thunder

Re: Interesting Lean Question...

I'm going to take a guess and say it is running rough until it switches into closed loop operation. When you first start the car its running in open loop mode which basically means the ECM ignores...
Forum: TPI
07-28-2014, 08:37 PM
Replies: 32
Views: 1,493
Posted By Rolling Thunder

Re: No start with fuel and spark

A few things here. First, I would be very curious to know what the check engine light was for. Even if the light is not on it may still store a code. A while back I made a quick video to show how to...
Forum: TPI
07-27-2014, 09:08 PM
Replies: 32
Views: 1,493
Posted By Rolling Thunder

Re: No start with fuel and spark

Timing sounds like a good place to start. Any check engine light? Also I know this may sound silly but make sure the distributor clamp is down tight. Sounds like you might be a bit advanced.
Forum: Electronics
07-27-2014, 09:02 PM
Replies: 8
Views: 786
Posted By Rolling Thunder

Re: Headlight problem (not always going up) 86 T/A

Unfortunately these contacts are not really repairable nor is there a replacement available. Its really a convoluted set up. Basically, the armature itself is allowed to slide back and forth once the...
Forum: Electronics
07-26-2014, 11:30 PM
Replies: 8
Views: 786
Posted By Rolling Thunder

Re: Headlight problem (not always going up) 86 T/A

While you could verify this by measuring the voltages at your motors I suspect I know what your issue is. The contacts in the motors which control which direction voltage is applied are basically...
Forum: TPI
07-26-2014, 11:14 PM
Replies: 32
Views: 1,493
Posted By Rolling Thunder

Re: No start with fuel and spark

Well to be honest I never really torque those down I just do it by feel. To give you an idea though it should be somewhere around 5-10 ftbls. Really just tighten till snug plus a little bit more like...
Forum: TPI
07-26-2014, 10:59 PM
Replies: 32
Views: 1,493
Posted By Rolling Thunder

Re: No start with fuel and spark

Well I don't want to just recommend tightening it up for fear of over torquing it though you could if it was loose. What I would recommend is removing it adding some thread sealer or teflon tape and...
Forum: Tech / General Engine
07-26-2014, 10:37 PM
Replies: 4
Views: 632
Posted By Rolling Thunder

Re: 1991 camaro fuel pump issues

Sounds like maybe you didn't have a good ground reference when taking those measurements? You should have ~12V to the pump. If not, I would go back to the fuel pump relay (by the brake booster) and...
Forum: TPI
07-26-2014, 10:15 PM
Replies: 32
Views: 1,493
Posted By Rolling Thunder

Re: No start with fuel and spark

http://autofix.com.au/blog/chev-tuned-port-injection-conversion-part-two

check out this web page there's a great picture pointing it out.
Forum: TPI
07-26-2014, 10:12 PM
Replies: 32
Views: 1,493
Posted By Rolling Thunder

Re: No start with fuel and spark

It's actually a small 1/8 NPT port basically right by the distributor. If your cars got the factory set up there will be an oil pressure sensor/odd ball 90 degree fitting screwed into it.
Forum: TPI
07-26-2014, 10:02 PM
Replies: 32
Views: 1,493
Posted By Rolling Thunder

Re: No start with fuel and spark

Well no harm in letting it sit and dry to be safe. However just a quick thought here are you sure it wasnt the oil pressure port on the back of the block leaking? That is under a lot of pressure and...
Forum: TPI
07-26-2014, 09:58 PM
Replies: 3
Views: 1,137
Posted By Rolling Thunder

Re: Help Needed!! - TPS Voltage wont reach max at WOT

Just something quick to check while your in there, the ECM supplies 5V to the sensor and the TPS sensor is just a voltage divider that feed some % of that voltage back to the ECM. As stated the TPS...
Forum: TPI
07-26-2014, 09:52 PM
Replies: 32
Views: 1,493
Posted By Rolling Thunder

Re: No start with fuel and spark

While it's not cured by heat, it does accelerate the process. As far as running it when its not dry, those areas are really not under any pressure. Its really almost just a splash guard to keep the...
Forum: TPI
07-26-2014, 09:39 PM
Replies: 32
Views: 1,493
Posted By Rolling Thunder

Re: No start with fuel and spark

Gasket maker can take a very very long time to completely dry if its applied thick (as it is in the front and rear of your intake manifold). The outside dries but the inside which is now pretty well...
Forum: TPI
07-26-2014, 09:16 PM
Replies: 32
Views: 1,493
Posted By Rolling Thunder

Re: No start with fuel and spark

I'm going to take a stab at this and guess the distributor is 180 degrees out? It's great that you marked the distributor housing before you pulled it, however even with that mark lined up, the rotor...
Forum: Tech / General Engine
07-25-2014, 07:01 PM
Replies: 4
Views: 431
Posted By Rolling Thunder

Re: Fuel pump question

Mechanical only.
Forum: Electronics
07-25-2014, 06:56 PM
Replies: 14
Views: 1,129
Posted By Rolling Thunder

Re: I have burned up 3 alternator in three week help

I'm guessing he means the sensor wire? I suppose I can see what hes getting at. The alternator does not use permanent magnets to generate power they use an electromagnet. The alternator regulates the...
Forum: Electronics
07-23-2014, 11:24 PM
Replies: 6
Views: 722
Posted By Rolling Thunder

Re: TURN SIGNAL WILL NOT FLASH AND MORE..

Negative, I would verify all the lights work properly in all positions headlights on or off. $0 no trip to the parts store almost 0 effort. Doesn't get much easier than that?
Forum: Electronics
07-23-2014, 11:09 PM
Replies: 6
Views: 722
Posted By Rolling Thunder

Re: TURN SIGNAL WILL NOT FLASH AND MORE..

Well that not quite true. First off, is it possible its the flasher bulb? Sure. Still, I think its likely something else and its easy to prove for $0 and minimal effort. These turn signal set ups are...
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