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Forum: Pontiac 01-12-2018, 10:23 PM
Replies: 4
Views: 73
Posted By Tech II
Cathedral Club, I totally disagree... ...

Cathedral Club, I totally disagree...




If a dealership can't fix it's own cars, they should close down the place.....a freakin' 2002 is old? Do you diagnose a 2002 differently from 2018?...
Forum: Pontiac 01-10-2018, 11:50 PM
Replies: 2
Views: 51
Posted By Tech II
If you are getting spark on the other two coils,...

If you are getting spark on the other two coils, and nothing on the 1/4 coil, even after replacing it, then you need an ICM, ignition control module....this is what the coils sit on....
Forum: GMC/Chevrolet Truck/SUV 01-09-2018, 09:00 AM
Replies: 8
Views: 79
Posted By Tech II
I have never seen those codes before, but they...

I have never seen those codes before, but they are delayed responses from the O2 sensors....what is strange is this happening to both sides at the same time?

This is a dual cat setup, and the...
Forum: Oldsmobile 01-08-2018, 11:15 PM
Replies: 4
Views: 88
Posted By Tech II
Well, for example, suppose one of the circuits is...

Well, for example, suppose one of the circuits is some type of solenoid...and suddenly the solenoid shorts out.....current will increase and the quad driver will shut down....the fix is replace the...
Forum: Oldsmobile 01-08-2018, 12:55 PM
Replies: 4
Views: 88
Posted By Tech II
My first guess would be the ECM, but hopefully...

My first guess would be the ECM, but hopefully you replaced it with one that didn't have a similar problem.....

Since you have a manual and wiring diagrams, you have to test it the old fashion...
Forum: Buick 01-07-2018, 10:32 PM
Replies: 3
Views: 227
Posted By Tech II
Does your ELM read data? If yes, then there are...

Does your ELM read data? If yes, then there are no transmission codes set....
Forum: Chevrolet 01-05-2018, 10:43 PM
Replies: 9
Views: 121
Posted By Tech II
What we are trying to tell you is, proper...

What we are trying to tell you is, proper diagnosis, could have saved you a lot of money....

You only replace a fuel pump and filter, if pressure is too low......you don't even know what the...
Forum: Chevrolet 01-04-2018, 10:28 PM
Replies: 9
Views: 121
Posted By Tech II
I assume you mean, it cranks over, but the engine...

I assume you mean, it cranks over, but the engine does not fire....

4.8 or 5.3? Well, makes no difference as far as spark and fuel are concerned....

Have you scanned for codes?

Checked fuel...
Forum: GMC/Chevrolet Truck/SUV 01-04-2018, 11:55 AM
Replies: 9
Views: 156
Posted By Tech II
You can get a ground anywhere.....can run a wire...

You can get a ground anywhere.....can run a wire directly from battery(using a toggle switch), or one of the huge fuses(THAT ONLY GET POWER WITH KEY IN ON POSITION), and use a smaller inline fuse to...
Forum: Pontiac 01-01-2018, 02:13 PM
Replies: 5
Views: 108
Posted By Tech II
Agree with Rjolly, touch the inlet and out heater...

Agree with Rjolly, touch the inlet and out heater core hoes.....BOTH should be hot....if outlet is cooler, either plugged core(backflush), or air pocket(coolant leak.....check reservoir AND radiator...
Forum: Pontiac 12-31-2017, 01:39 PM
Replies: 9
Views: 111
Posted By Tech II
The SECURITY SYSTEM, only comes into play on...

The SECURITY SYSTEM, only comes into play on startup.......If there is a problem, it will start and then immediately stall......once the vehicle starts and runs, it has no effect on the running of...
Forum: Buick 12-31-2017, 12:34 AM
Replies: 9
Views: 145
Posted By Tech II
You need a scan tool capable of reading 1.5 and...

You need a scan tool capable of reading 1.5 and 2.0 protocols....
Forum: GMC/Chevrolet Truck/SUV 12-30-2017, 11:15 PM
Replies: 20
Views: 288
Posted By Tech II
Yes, that is a strange one.....it is one of the...

Yes, that is a strange one.....it is one of the power fuses that goes into the BCM......what happens in the BCM, stays in the BCM, I guess......

Good work finding the fuse, and replying with the...
Forum: Audio (and aftermarket electronics) 12-30-2017, 05:02 PM
Replies: 5
Views: 267
Posted By Tech II
Funny that it would act like that when not being...

Funny that it would act like that when not being activated for years.....well, just the fuse did the trick...good job...thanks for reply with fix.
Forum: Audio (and aftermarket electronics) 12-30-2017, 11:11 AM
Replies: 5
Views: 267
Posted By Tech II
Not sure exactly what you mean.... Is your...

Not sure exactly what you mean....

Is your OnStar subscription still active?

Have you ever used OnStar Personal Calling? Is it still active?

So you start the car, radio is off, but the phone...
Forum: Buick 12-26-2017, 11:19 PM
Replies: 8
Views: 105
Posted By Tech II
It's possible the compressor can run, if you are...

It's possible the compressor can run, if you are in the Defrost or Defrost/Heater position....the compressor should not run if the ambient air is below 40F.....

Rjolly asked if you have the auto...
Forum: Buick 12-26-2017, 02:33 PM
Replies: 13
Views: 222
Posted By Tech II
Ok, do I get some sort of prize for this? ...

Ok, do I get some sort of prize for this?

"LH side of I/P on underside of steering column."

It has to be in a yellow wire(goes into fuse and out of fuse) in the SIR circuit that goes up the...
Forum: Pontiac 12-23-2017, 09:01 AM
Replies: 18
Views: 185
Posted By Tech II
As far as diagnosing the window, one of the best...

As far as diagnosing the window, one of the best tools you can make is, get a socket for a 194a bulb, a 194 a bulb,, and then go to any GM dealer to get two male fittings(they will know which ones...
Forum: Buick 12-22-2017, 01:27 PM
Replies: 13
Views: 222
Posted By Tech II
There is a 2 amp fuse in the "steering column...

There is a 2 amp fuse in the "steering column fuse holder", where ever that is, that powers those lights.....since the switches function, I doubt it's the SIR clock spring....
Forum: Pontiac 12-20-2017, 11:30 AM
Replies: 7
Views: 80
Posted By Tech II
Need to scan the vehicle for "C", or chassis...

Need to scan the vehicle for "C", or chassis codes.......regular scanners/code readers can only read "P" codes....
Forum: Buick 12-17-2017, 11:40 PM
Replies: 12
Views: 204
Posted By Tech II
How long have you been driving like this? ...

How long have you been driving like this?

May have a problem with the shift solenoids....Have you scanned for transmission codes?
Forum: GMC/Chevrolet Truck/SUV 12-17-2017, 11:37 PM
Replies: 20
Views: 288
Posted By Tech II
According to the wiring diagram, there is a front...

According to the wiring diagram, there is a front dome fixture and a rear dome fixture......

On the front, if you open the door or turn the dimmer switch to max, the two lamps in the front...
Forum: GMC/Chevrolet Truck/SUV 12-17-2017, 01:06 AM
Replies: 20
Views: 288
Posted By Tech II
The fixture I saw in a wiring diagram, has two...

The fixture I saw in a wiring diagram, has two reading lights, which are controlled by switches.....the dome light does not have a switch on the fixture....only switch for the dome is from door...
Forum: GMC/Chevrolet Truck/SUV 12-15-2017, 04:34 PM
Replies: 20
Views: 288
Posted By Tech II
I believe what you are talking about, is a...

I believe what you are talking about, is a fixture with three lights...one is the dome, and the other two are reading lamps......there should be a switch for each reading lamp.....the only switch for...
Forum: GMC/Chevrolet Truck/SUV 12-14-2017, 02:50 PM
Replies: 5
Views: 90
Posted By Tech II
Mike, thinking about it, you might actually be...

Mike, thinking about it, you might actually be right.....if the inside is rusted so bad, you might have to actually drive that 3/8's in!
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