Fox T-Bird/Cougar Forums

General => General Fox T-Bird/Cougar Discussion => Topic started by: quick50stng on March 31, 2009, 01:04:43 PM

Title: Biggest reliability issues with T-bird?
Post by: quick50stng on March 31, 2009, 01:04:43 PM
I'm picking up a 88 T-bird sport coupe in 5 of 10 condition tomorrow with 230,000 miles and still running strong.

5.0 is sludgy and leaking due to v/c leak, cracked windshield, tail lights are not working (where would I look to repair this, fuse? faulty wiring?
Drivers window is off the track and comes up all crooked (whats the cause behind this?)

My plans are to pressure wash the hell out of the car, outside, engine bay and undercarriage, New battery and all new tune up

Then HO conversion and nice exhaust system for my daily 60 mile round trip commute.

Electrically, what are the biggest gremlins in these cars and what are the fixes?
Title: Biggest reliability issues with T-bird?
Post by: jncocowboyx on March 31, 2009, 03:01:33 PM
window's an easy fix. prolly just the epoxy's loose in the "U" that holds the glass.
if both taillights aren't working, more than likely a fuse. no biggie. the ignition switch module thing would be well worth replacing now, as they have issues. cheap fix.
Title: Biggest reliability issues with T-bird?
Post by: vinnietbird on March 31, 2009, 04:36:00 PM
The heater cores usually go to  as well.I'd swap it with a Ford part while the weather is nice or you'll end up needing to do it in the dead of winter.
Title: Biggest reliability issues with T-bird?
Post by: 88BlueBird on March 31, 2009, 04:51:58 PM
Only major issues I've ever had with these cars are broken front springs and the POS 3.8L engine, but you don't have to worry about that.
Title: Biggest reliability issues with T-bird?
Post by: cougarcragar on March 31, 2009, 05:59:47 PM
Check the wiring at the BOO (brake on/off) switch, which is located about halfway up the brake pedal.
Those wires flex right at the connector and separate.
Title: Biggest reliability issues with T-bird?
Post by: Haystack on March 31, 2009, 07:37:30 PM
think mustang, minus about 75hp, and then make it better.
Title: Biggest reliability issues with T-bird?
Post by: thunderjet302 on April 01, 2009, 06:56:56 PM
Quote from: cougarcragar;265123
Check the wiring at the BOO (brake on/off) switch, which is located about halfway up the brake pedal.
Those wires flex right at the connector and separate.


Yep I've had that happen, twice. I finally just replaced the wires. It was a PITA job too as it's a tight space to be in with a soldering iron :hick:

The only thing I've had go wrong with my 88 has been the heater core going out. The rest of the stuff, even the engine, was just an upgrade. The old 5.0 SO would still be ticking away right now if I didn't want more power :burnout:
Title: Biggest reliability issues with T-bird?
Post by: jcassity on April 02, 2009, 12:52:51 AM
wiring diagrams located in Electrical tech up to in a sticky called 87EVTM

In honest opinion,
my bigges hassel with these cars are brakes up front.  A shakey steering column while braking tells you either

a caliper hose is eaten up inside not allowing fluid to bleed back when you get off the brake,,keeping presure on the inner pad.
this creates heat, cooks wheel bearing greese, warps rotors and causes calipers to stick.

Heater core is pretty much a given although there is an easy way out.
Title: Biggest reliability issues with T-bird?
Post by: quick50stng on April 02, 2009, 04:59:05 AM
Cougar Cragar you were correct. The connection at the BOO switch was broken. Fixed! Thank you
Title: Biggest reliability issues with T-bird?
Post by: ~AC on April 02, 2009, 05:19:28 AM
Quote from: quick50stng;265048
My plans are to pressure wash the hell out of the car, outside, engine bay and undercarriage, New battery and all new tune up


Beware.  I've always been warned about PW under the hood.  Been told it could RUIN some electronics etc.
Title: Biggest reliability issues with T-bird?
Post by: quick50stng on April 02, 2009, 07:49:24 AM
It can be done just have to cover the distributor and top electronics up with plasticand concentrate the water on the bay area and block and try avoiding the top side.
Title: Biggest reliability issues with T-bird?
Post by: Masejoer on April 02, 2009, 09:01:00 PM
Quote from: ~AC;265447
Beware.  I've always been warned about PW under the hood.  Been told it could RUIN some electronics etc.


Expect the body color to come off too. After power washing around the lower engine bay, all I had left was "gray". Then it got sanded and repainted but that shouldn't be any problem.
Title: Biggest reliability issues with T-bird?
Post by: 20thanniver-ls on April 03, 2009, 12:07:04 AM
Quote from: thunderjet302;265351
Yep I've had that happen, twice. I finally just replaced the wires. It was a PITA job too as it's a tight space to be in with a soldering iron :hick:

The only thing I've had go wrong with my 88 has been the heater core going out. The rest of the stuff, even the engine, was just an upgrade. The old 5.0 SO would still be ticking away right now if I didn't want more power :burnout:



Man I know exactly what you're sayin. I replaced the whole switch and wires - what a PITA X2. No room at all. :mad:
Title: Biggest reliability issues with T-bird?
Post by: quick50stng on April 03, 2009, 07:48:56 PM
Well im about to hop on that wagon. I got the HO cam today along with a set of GT40 heads
Title: Biggest reliability issues with T-bird?
Post by: Grumbles on May 02, 2009, 06:18:29 AM
Will an HO cam work with SO firing order?  If I'm reading my chilton's correctly, they're different orders.
Title: Biggest reliability issues with T-bird?
Post by: quick50stng on May 02, 2009, 12:08:00 PM
No they are different firing order. I'm using a 91 mark 7 ecm
Title: Biggest reliability issues with T-bird?
Post by: vinnietbird on May 02, 2009, 12:25:27 PM
Quote from: Grumbles;270152
Will an HO cam work with SO firing order?  If I'm reading my chilton's correctly, they're different orders.


If you install the H.O cam,you'll need to install the H.O computer,19# injectors,and wire it like a 351W (plug wires).it would really help to upgrade the exhaust and intake at that time as well.
Title: Biggest reliability issues with T-bird?
Post by: Innes on May 02, 2009, 03:43:12 PM
if your going to powerwash an old car that your rating 5 of 10 be ready fof a big mess :hick: if you going to do it in the street i hope theres a drin near by. or niegbors are going to freak lol

these are good very reliable cars especially in the 5.0s
Title: Biggest reliability issues with T-bird?
Post by: quick50stng on May 02, 2009, 04:29:39 PM
Years and years of leakage left the underside of the vehicle a nasty hazardous mess. I bought a pump sprayer and purple power and took the car to the local car wash equipped with jack and jack stands. Degreased the undercarriage and put $6 worth of car washes to it. World of difference now. I have most of the leaks fixed minus the rear main seal. I haven't decided whether to find another short block to put my GT40 heads on or just build the top end till she blows up.
Title: Biggest reliability issues with T-bird?
Post by: Grumbles on May 02, 2009, 08:43:02 PM
Going carbed, no computer necessary.  A little confused though, if the timing is different, wouldn't the crank have to be different too?
Title: Biggest reliability issues with T-bird?
Post by: quick50stng on May 03, 2009, 07:57:56 PM
Camshaft events do not effect the crankshaft.
Title: Biggest reliability issues with T-bird?
Post by: Grumbles on May 03, 2009, 08:33:26 PM
I guess what I mean is, if there is a timing change, wouldn't that then mean that the pistons are in a different position?
Title: Biggest reliability issues with T-bird?
Post by: Beau on May 03, 2009, 08:57:08 PM
No, because in going to HO, the cam itself is changed, but the timing isn't directly affected by the bigger cam, just the firing order is different. Seems as if logic would make this impossible, but it is possible.

The cranks between HO and SO are identical.

On a related note, you can do what's sometimes called a "mid HO" conversion, using the HO upper/lower throttle body, etc...

But, if you are going to use the 19# injectors, you MUST ALSO use the HO cam and an HO EEC...those three components have to be used together!! ;)
Title: Biggest reliability issues with T-bird?
Post by: Grumbles on May 03, 2009, 10:05:14 PM
I wonder if my crane cam is SO or Ho order.  Cant find out, company closed :[
Title: Biggest reliability issues with T-bird?
Post by: quick50stng on May 04, 2009, 06:35:09 PM
well if you put the engine at top dead center. Pull the #3 plug. Rotate the engine manually at the crank. If the next firing cylinder is #3 a burst of air will push past your finger. That is a 351w/302H0 firing order. If air didn't push past then the next cylinder to fire was #5 standard 302 order
Title: Biggest reliability issues with T-bird?
Post by: 83-88T-Bird Guy on May 08, 2009, 12:43:00 PM
I have pressure washed plenty of vehicles. I start the engine when it is cold , leave it running ( with the emergency brake on) and have at it. I stay away from a direct spray at electronic stuff. If the engine dies, I dry out the inside of the distributor cap and re-start it and continue.  That's is how I do it but I am not advising anyone to do it.;)t