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Search: Posts Made By: Don Christensen
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Forum: Theoretical and Street Racing
01-31-2024, 09:25 PM
Replies: 127
Views: 13,111
Posted By Don Christensen

Re: Thirdgen around the Nurburgring?

I own a 2014 Cadillac CTS-V sedan, and my wife drives a nice 89 Formula 5.7 that is lightly modded and stiffened. Both cars are a hoot to drive.

But the Caddy will cruise at 150 easily and...
Forum: Tech / General Engine
08-10-2023, 10:03 AM
Replies: 42
Views: 27,104
Posted By Don Christensen

Re: New Vacuum Diagram

Still relevent in 2023 - MANY THANKS!!
Forum: Cooling
08-08-2022, 11:36 PM
Replies: 19
Views: 901
Posted By Don Christensen

Re: Colder AC or better blower motor

Wife's 89 Formula has a similar issue. The system cools very well, but just not blowing much air. I checked and at idle there was only 10.94 volts at the blower. The relay was burned, as was the...
Forum: Wheels and Tires
09-10-2020, 05:35 AM
Replies: 8
Views: 612
Posted By Don Christensen

Re: What spare tires are you running?

The spare tire from Hawk's arrived yesterday afternoon. It's the one listed for a 98-02 Firebird/ Trans Am. They sell it with a jack and everything for $125 shipped, but i told them to keep the jack,...
Forum: Wheels and Tires
08-28-2020, 02:32 PM
Replies: 8
Views: 612
Posted By Don Christensen

Re: What spare tires are you running?

To clarify, we do not want a full sized spare, just a small tire to get her down the road to either a tire store, or home.

Thanks to all of those who replied. We ordered one from Hawks...
Forum: Wheels and Tires
08-28-2020, 06:34 AM
Replies: 8
Views: 612
Posted By Don Christensen

Re: What spare tires are you running?

Thanks for the prompt reply, Ironwill. And for the added concern... Yes, she does have AAA, so that problem i solved. Now we just need to know where to buy a factory spare tire.
...
Forum: Wheels and Tires
08-27-2020, 02:57 PM
Replies: 8
Views: 612
Posted By Don Christensen

What spare tires are you running?

My 69 year old wife drives the 89' Formula 5.7 that my brother bought new 31 years ago. She used to drive it all over Texas, but then one day she ran over some debris and got a flat. The inflatable...
Forum: Exhaust
11-06-2018, 11:19 PM
Replies: 19
Views: 1,848
Posted By Don Christensen

Re: shorty header vs longtube header

Hello RobertFrank,

Saw that you have a set of Dyno Don shorty headers and the Y pipe. A few questions please....

Am these the headers without the EGR tubes?
I want a Y tube with a catalytic...
Forum: Members Firebirds
01-26-2016, 11:55 PM
Replies: 4
Views: 647
Posted By Don Christensen

Re: Decal color question: Wife has red 89 Formula 350

Thanks Bully & Manta - She is 64 and wants to go fast again.....
Forum: Members Firebirds
01-24-2016, 09:28 PM
Replies: 4
Views: 647
Posted By Don Christensen

Decal color question: Wife has red 89 Formula 350

Am getting it painted after waiting 2 years for another guy to paint it (long, sad story).

What Color decals?

I thought they were white on the red cars, but cannot find anyone who sells...
Forum: Interior
07-06-2013, 09:39 PM
Replies: 12
Views: 22,839
Posted By Don Christensen

Re: Horn not working

And if the CTSY (Courtesy) fuse is blown, and the replacement blows, the first place to check is the cigarette lighter. My wife has a habit of dropping pennies into her lighter socket ......
Forum: Electronics
07-06-2013, 03:51 PM
Replies: 4
Views: 2,399
Posted By Don Christensen

Re: where are the fuses in an 89 firebird

Had a similar issue on my bride's 89 Formula. It was a nearly new ground cable, and was intermittently open.

Fortunately I traced it out with an ohmmeter before I started throwing parts at...
Forum: DFI and ECM
01-01-2012, 09:16 PM
Replies: 2
Views: 1,350
Posted By Don Christensen

Replacement MicroTech MAF not as good as factory Bosch unit.

My bride's 89 Formula was running poorly, throwing a 34 code, and was hard-starting. It has the 350 TPI motor.

After checking to make sure it was not the relays or wiring, I replaced the factory...
Forum: TPI
12-20-2011, 08:22 AM
Replies: 17
Views: 1,072
Posted By Don Christensen

Re: need help diagnostic codes

Gentlemen,

I have found that the easiest way to remove the gas tank is to just go ahead and cut the filler neck.

Merry Christmas to all
Forum: TPI
12-11-2011, 09:49 PM
Replies: 8
Views: 1,762
Posted By Don Christensen

Re: 88 350 tpi formula, no tps signal, backfires, rich

You said the original MAF was reading 36,000, and you replaced it. What readings are you getting with the new MAF. They should read 3,000 at idle and about 9,000 at 3000 rpm under no load.
Forum: Tech / General Engine
05-15-2011, 01:30 PM
Replies: 27
Views: 2,838
Posted By Don Christensen

Re: fuel pump/gas tank removal HELP!!!!

I cheated and cut the gas filler neck with a hacksaw. Then when I reinstalled it, i had a short piece of gas filler hose like all cars from the 60's and earlier used.
Forum: Tech / General Engine
06-25-2010, 12:09 PM
Replies: 44
Views: 2,669
Posted By Don Christensen

Re: 89 Formula 5.7 has intermittent starting problem....

Regal 301 is the Bomb!! It was the Injectors. I had not read his subsequent post about Bosch vs. Accel, and was in a time bind so I ordered #24 Accels.

The car screams again when you floor...
Forum: Tech / General Engine
06-16-2010, 07:55 PM
Replies: 44
Views: 2,669
Posted By Don Christensen

Re: 89 Formula 5.7 has intermittent starting problem....

Rich,

You probably win the prize. Three of the injectors ohm out at 16, two more around nine ohms, and one as low as 3.5 ohms. I guess after 229k miles, it might be time to change em out.
...
Forum: Tech / General Engine
06-16-2010, 12:50 AM
Replies: 44
Views: 2,669
Posted By Don Christensen

Re: 89 Formula 5.7 has intermittent starting problem....

Today i drained the tank and filled it with fresh, 93 octane gasoline.

And now there is pressure in the fuel tank, and the fuel is warm, very warm. When I run the engine, even for a very...
Forum: Tech / General Engine
06-11-2010, 08:51 PM
Replies: 44
Views: 2,669
Posted By Don Christensen

Re: 89 Formula 5.7 has intermittent starting problem....

Will try to access the oil pressure shutoff switch next.. Any other ideas?
Forum: Tech / General Engine
06-11-2010, 07:31 PM
Replies: 44
Views: 2,669
Posted By Don Christensen

Re: 89 Formula 5.7 has intermittent starting problem....

Installed a new distributor today and it fired right up ...... once.



:rolleyes: Same problem, different day.
Forum: Tech / General Engine
06-10-2010, 10:15 PM
Replies: 44
Views: 2,669
Posted By Don Christensen

Re: 89 Formula 5.7 has intermittent starting problem....

Update on the Redbird...

FUEL TEST: I hooked a digital voltmeter across one of the injectors, and set it on a AC Voltage scale. Then started the Bird.
Idling at 700, voltage = 0.6 to 0.8v...
Forum: Tech / General Engine
06-08-2010, 07:47 PM
Replies: 44
Views: 2,669
Posted By Don Christensen

Re: 89 Formula 5.7 has intermittent starting problem....

Jgilbo17, does yours start the first time?? My wife's will start in one second, but only for the first time. After that, I have to wait a while before the next start.
Forum: Tech / General Engine
06-08-2010, 07:37 PM
Replies: 44
Views: 2,669
Posted By Don Christensen

Re: 89 Formula 5.7 has intermittent starting problem....

:goodidea: Good try, 87WS6, but it turns over quite fast. I went out running, and just got back. It started up and I ran it less then 10 seconds. It will not restart now, but turns over fast. ...
Forum: Tech / General Engine
06-08-2010, 05:52 PM
Replies: 44
Views: 2,669
Posted By Don Christensen

89 Formula 5.7 has intermittent starting problem....

Intermittent starting 89 Formula
My wife's 89 Formula with 5.7 TPI starts intermittently.

It will start perfectly the first time, and it runs great . But when I shut it off. it will crank fine...
Forum: DFI and ECM
06-07-2010, 06:36 PM
Replies: 1
Views: 538
Posted By Don Christensen

Intermittent starting 89 Formula

My wife's 89 Formula with 5.7 TPI starts intermittently.

It will start perfectly the first time, and then maybe the second, but not always the third time. And now, sometimes it will not start...
Forum: Interior Parts for Sale
03-21-2007, 07:38 PM
Replies: 37
Views: 1,299
Posted By Don Christensen

Re: Big parts sale. ALL GTA parts-- priced to move!

Do you have a good rear-console ashtray? If so, how much. can pay with Paypal or check. Thanks!
Forum: Interior
01-07-2007, 08:11 PM
Replies: 16
Views: 1,156
Posted By Don Christensen

Gentlemen, I typed in the part # tha...

Gentlemen,


I typed in the part # tha Bingo gave us at OEHQ.com and got the following at $233.69.

http://www.oehq.com/index2.cfm?showpage=utility/partsearch2.cfm

Good luck ~ Don
Forum: Interior Parts for Sale
10-22-2006, 10:58 PM
Replies: 42
Views: 1,222
Posted By Don Christensen

Doe you still have the frame for the radio?

Hi - Do you still have the frame for the radio?

If so , how much.


Thanks, Don
Forum: Suspension and Chassis
04-23-2004, 09:18 PM
Replies: 3
Views: 381
Posted By Don Christensen

Thanks Trickster - It holds 9 ounces of CO2, and the cheapest

way to get CO2 is to get it from a Paintball store (they sell it by the ounce). However, the local store does not have the proper fittings to get the job done.

I will try the Fire Extinguisher...
Forum: Suspension and Chassis
04-23-2004, 01:23 PM
Replies: 3
Views: 381
Posted By Don Christensen

What is the proper pressure for the Spare Tire Inflater ?

My wife's 89 Formula, which has been in the family since it was purchased new, finally had a flat tire while she and other gal were on the road. Being a Posi rearend, it has the collapsible spare...
Forum: Classified Ads Feedback Board
07-29-2003, 09:54 PM
Replies: 0
Views: 344
Posted By Don Christensen

SanitariumTour0 <lilpenny.1@juno.com> is honest

Bought a nice Comp Hydraulic Roller cam from Matt & never got his last name or username. :doh:




SanitariumTour0 is his username and he is honest & thorough,
Forum: Classified Ads Feedback Board
07-28-2003, 09:06 PM
Replies: 1
Views: 556
Posted By Don Christensen

Matt <lilpenny.1@juno.com> is honest

I did not get Matt's last name, but I got the Comp Roller cam that he sold me. It was promptly shipped and well packaged.

An honest person with integrity.


Thanks Matt!!!!!!!!!!!!
Forum: Aftermarket Product Review
08-02-2002, 06:57 PM
Replies: 29
Views: 1,726
Posted By Don Christensen

Laiky, I think a Stealth will work nicely on your

383 with AFR heads. Weiand says that it should not be used on motors smaller than a 350.

Sounds like you have better heads than I do, and I possibly have more cam. Frankly, I have too much...
Forum: Aftermarket Product Review
08-01-2002, 11:40 PM
Replies: 29
Views: 1,726
Posted By Don Christensen

I have a Stealth on my 406 roller-cammed 63 Nova, and it

is exhilarating, to say the least. I don't know how a Stealth would run with a smaller motor and stock heads, but it is plenty of manifold for my setup. Good power to 7000 rpm and a decent idle -...
Forum: TPI
07-27-2002, 10:43 PM
Replies: 3
Views: 429
Posted By Don Christensen

I made that mistake . . . . .

The slots in the rocker will cut into the studs because the rocker is travelling farther with the high lift cam. Buy either long-slot rockers or roller rockers. I am 51 years old, and have reached...
Forum: TPI
07-27-2002, 10:17 PM
Replies: 5
Views: 986
Posted By Don Christensen

The airfoil came without bolts, instructions, etc.

Therefore I am having trouble vizualizing this. Is there someplace where I can see the directions? Thanks Arlington A-ghost !!
Forum: TPI
07-27-2002, 08:47 PM
Replies: 5
Views: 986
Posted By Don Christensen

How do I install an air foil on my wife's 89 TPI Bird?

I bought an airfoil on eBay and want to make sure I install it right. It's pretty obvious where it goes, and the top is marked "top". The problem is that there are no holes in my throttle body to...
Forum: Cooling
07-24-2002, 07:07 PM
Replies: 4
Views: 577
Posted By Don Christensen

Thanks Slade - for the good "Tech Article". Howver, I kinda wish you had left off

the part about being 5' 10" and the subsequent back pain, etc. I am 5' 12" and I have to change the core on my daughter's "BlackBird" before we sell it. LOL !! Oh well, it has to be done.
Forum: Cooling
07-20-2002, 09:25 PM
Replies: 5
Views: 709
Posted By Don Christensen

THANKS AJ !!! Yeah, I figured that out when I got about

2/3 of the junk pulled off of the top of the motor. It sure is "clean" under the hood now, and a heck of a lot easier to work on.

I had planned to do some TPI mods/improvements, but I wanted...
Forum: Cooling
07-19-2002, 07:52 PM
Replies: 5
Views: 709
Posted By Don Christensen

Thanks GKK. Rerouted all that suff last night, but now I have to think about the

Oil Cooler. If I shut off flow to the cars' interior, then I have the problem of a non-functioning Oil cooler. I am guessing that I'll splice a diverter valve in there next. So far the AC can...
Forum: Cooling
07-18-2002, 06:50 PM
Replies: 5
Views: 709
Posted By Don Christensen

Can I pull the Heater control valve from under the hood and

re-route the heater hoses into a tradional style without affecting the reverse cooling of the intake. This is on an 89 Formula 350. I am trying to "clean up" the engine compartment and simplify...
Forum: Tech / General Engine
07-17-2002, 11:07 PM
Replies: 6
Views: 459
Posted By Don Christensen

It was the battery on my daughter's 90 Formula . . . .

I could not get the time to fix it, and it ate the alternator too.
Forum: Tech / General Engine
07-17-2002, 10:31 PM
Replies: 6
Views: 408
Posted By Don Christensen

How do I get that bolt out ? . . . . .

I just finished removing the smog pump and all the accompanying parts on an 89 350 Formula TPI car. The last remaining part is the tube on the passengers' side going down to the exhast pipe...
Forum: Tech / General Engine
07-17-2002, 10:10 PM
Replies: 85
Views: 2,176
Posted By Don Christensen

Listen carefully . . . . .

Turn off the radio, turn off the fan blower motor (AC), and listen carefully. When you turn the key "on", you should hear the fuel pump run for a few seconds. When your motor starts properly, your...
Forum: Tech / General Engine
07-17-2002, 10:00 PM
Replies: 6
Views: 9,236
Posted By Don Christensen

Maybe . . . If there is less than .002 wear in the bore

, and no ridge, just lightly hone the cylinders and put it back together.

I once bought a used 350 for $100 that had 65k miles on it. The guy said it had been a strong motor once, but now it...
Forum: TPI
05-13-2002, 06:46 AM
Replies: 16
Views: 586
Posted By Don Christensen

Used factory wires . . . .

Good Morning SLOW 5.0 !!!! :) When you have kids in college, you are artificiallly impoverished, and look to save $$ every chance you can.

Although I am an engineer, I do a ton of mechanic work...
Forum: Engine Swap
05-11-2002, 11:36 PM
Replies: 6
Views: 4,952
Posted By Don Christensen

Mechanical fuel pump on Roller-cam blocks?

:confused:
I am seeking a roller cam block that I can put in a carbureted pickup. I believe that the rollers came out in 87, but by then GM was no longer using carbs.

Is this true? Crate...
Forum: TPI
05-11-2002, 05:17 PM
Replies: 16
Views: 586
Posted By Don Christensen

THE ANSWER TO THE PROBLEM WAS . . . .

:doh:
SPARK PLUG WIRES
:doh:

The plug wires were breaking down under a load and causing the idle to fluctuate all over the place. I disovered it when I got zapped while checking fuel...
Forum: TPI
05-08-2002, 11:08 PM
Replies: 16
Views: 586
Posted By Don Christensen

Rigor Mortis . . . . .

Hi 72LT1 Vette,

The pump died at 198k miles. It had already been running poorly at that time.

Question; how do I check out the mass air flow sensor?


Thanks - Dom
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