1988 buick lesabre ignition problem...please help!

[sparcking]

i have a 1988 buick lesabre 3.8 liter v6 , has error code 41...it runs when cold but when hot, it will not start, it is getting fuel and sparck...we have replaced the coil pack and ignition module....still no starting when hot...any help would be appreciated..thanks

[buickmastermind]

Methinks you have a problem with the cam sensor. If you have the 3800, I think it's behind the pulley for the water pump. If you have the 3.8, it is behind the pulley for the water pump.

[rustbucket]

My 87 had the same problem (no error code though). After replacing almost everything (fuel filter, fuel pump, TPS, cam sensor, crank sensor, pressure regulator), I found that the radiator was clogged, causing it to run hot, but not hot enough to light the temp light. After sitting , the heat probably built up more, and it wouldnt start till cooldown. Since the radiator change, no problems. In fact, the coolant fan hardly runs at all now, and before it was running nearly constantly.

[buickmastermind]

Well, I'm still thinking cam sensor, because if the computer doesn't see the data from it, it won't let the car start after it warms up (that is when the signal is used...not used when engine is cold).

[sparcking]

ok, i had it towed to the shop and am waiting to hear from them.....i will let you guys know...thanks for the help. i like the car and plan to keep it...thanks again

[vems]

I'm currently having the same problem. At one time I was getting code 41, but fixed that problem. Now no codes and will only run when cool.

Did you find anything out after towing to the shop?

[sparcking]

ok, mass air flow sensor and a cam sensor...880 to fix.....i cant afford it so i will get another car...i did like that one though

[vems]

Thanks for the post, however I don't think that would fix my problem as I am getting no codes from the computer. I believe a code would show if both of those sensors needed replaced.