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Topic: 1988 thunderbird v6 problems (Read 11072 times) previous topic - next topic

1988 thunderbird v6 problems

Reply #45
Record the codes you are getting and throw it up here or on YouTube or something.

https://youtu.be/9QSiS6wf7oU
Quote from: jcassity
I honestly dont think you could exceed the cost of a new car buy installing new *stock* parts everywhere in your coug our tbird. Its just plain impossible. You could revamp the entire drivetrain/engine/suspenstion and still come out ahead.
Hooligans! 
1988 Crown Vic wagon. 120K California car. Wifes grocery getter. (junked)
1987 Ford Thunderbird LX. 5.0. s.o., sn-95 t-5 and an f-150 clutch. Driven daily and going strong.
1986 cougar.
lilsammywasapunkrocker@yahoo.com

1988 thunderbird v6 problems

Reply #46
Can I do a koer test if the spout is out? I checked it with the koeo and got 11 then 41

1988 thunderbird v6 problems

Reply #47
The codes I got are 41 18 or 81 or maybe both

1988 thunderbird v6 problems

Reply #48
I think it was 18 since that one says to advance timing

1988 thunderbird v6 problems

Reply #49
41 is always lean passenger, usually an o2 sensor , 18 is spout not connected.

Now try to start the car with the spout plugged in. With it unplugged, you essentially disable the computer.
Quote from: jcassity
I honestly dont think you could exceed the cost of a new car buy installing new *stock* parts everywhere in your coug our tbird. Its just plain impossible. You could revamp the entire drivetrain/engine/suspenstion and still come out ahead.
Hooligans! 
1988 Crown Vic wagon. 120K California car. Wifes grocery getter. (junked)
1987 Ford Thunderbird LX. 5.0. s.o., sn-95 t-5 and an f-150 clutch. Driven daily and going strong.
1986 cougar.
lilsammywasapunkrocker@yahoo.com

1988 thunderbird v6 problems

Reply #50
It won't start with the spout in

1988 thunderbird v6 problems

Reply #51
Quote from: bodyman;455578
If it runs without the spout pull it, start it, check the base timing just to make sure it is set right.

Agreed, AFAIK the ECM retards timing while cranking, if initial timing is retarded that could be your start issue...

You need to get a light on it to find out where timing is set and stop just guessing...

1988 thunderbird v6 problems

Reply #52
Timing is set to 10 degrees still no start with the spout in. it does try

1988 thunderbird v6 problems

Reply #53
How well does it start with the spout out? When it tries to start with the spout in what is it doing? Does it sound like it is popping thru the intake or exhaust or any kick back on the starter?

Not sure what direction to send you, but wouldn't hurt to confirm that when cylinder 1 is at TDC the balancer reads the same and that the valves are closed.

1988 thunderbird v6 problems

Reply #54
The car starts and runs great with the spout out. I drove it to work. There are a bunch of popping noises when the car is cooling off other than that idk everything's seems ok. I was only getting 2 volts at the spout if that means anything

1988 thunderbird v6 problems

Reply #55
The spout is a jumper, nothing else.

If the computer runs great with the spout out, it will run 10 times better when you fix it. You are in limp mode. At best you get bad gas mileage and it doesn't run right, at worse you burn up the cat conv and have to spend a bunch of money.

The spout essentially removes the ignition advancement features of the computer and forces limp mode. If it runs at all you are probably really close to fixing it. What codes pop up after you try cranking with the spout in?
Quote from: jcassity
I honestly dont think you could exceed the cost of a new car buy installing new *stock* parts everywhere in your coug our tbird. Its just plain impossible. You could revamp the entire drivetrain/engine/suspenstion and still come out ahead.
Hooligans! 
1988 Crown Vic wagon. 120K California car. Wifes grocery getter. (junked)
1987 Ford Thunderbird LX. 5.0. s.o., sn-95 t-5 and an f-150 clutch. Driven daily and going strong.
1986 cougar.
lilsammywasapunkrocker@yahoo.com

1988 thunderbird v6 problems

Reply #56
Actually no sprout just means no timing advance, not limp mode... In limp mode timing is fixed, not advancing, along with a fixed injector pulse... Are rich at idle often to point of belching black smoke, lean under acceleration, run like ...

Why this one runs OK without sprout is a mystery to me, BUT if it has only 10* advance it can't be that great...

Verifying timing marks is a good suggestion...

1988 thunderbird v6 problems

Reply #57
When I try with the spout in cranking the only code I get is 41. How many volts should the spout have

1988 thunderbird v6 problems

Reply #58
Could it be a short circuit I had got code 18 before I unplugged the battery the other day

1988 thunderbird v6 problems

Reply #59
code 18  (R)=key on engine running    Check base timing & advance function
 (M)=memory    Ignition TACH signal erratic

code 41  (R) System lean
 (M) System was lean for 15 seconds or more (no HO2S switching)

Not sure what voltage the spout wire should have, but it is just a signal wire that will be lower voltage. Most signal wires have 0 to 5 volts.

The reason for checking that piston 1 is at TDC when the timing mark is at zero is to make sure your harmonic balancer has not slipped. If it has it is possible that you are not at the 10 degrees base timing that you believe you are at. It's a long shot, but it is easy to check and only costs your time.