87 T11:why when hot no run good
09-30-02, 01:49 AM
#1
87 T11:why when hot no run good
I have an 87 T11, some things you should know are is that the motor has 1900 miles since a rebuild. Some things I removed are EGR valve, ACV, bac valve, air pump, and cold start. It also has the TB mod, new o2 sensor, a TPS that worked in my 88 GTU, and I have also added grounds to the ECU, boost sensor, TPS, battery to body, and redid the tranny to firewall ground. HAILERS talks about getting like 0.1 ohm, and I get like 0.4 ohms. Engine also has new plugs and new fuel filter, I also cleaned the filter inside the gas tank. I just drove the thing on the highway tonight and it drove perfect, but when it gets hot like in the daytime, it runs like **** sometimes. The car will start bucking sometimes and it has a worse than normal 3800 hesitation. Could it be dirty injectors affected by the heat? It also does this thing when you rev the engine while the car is still and like just punching the accelerator to the floor, it will hesitate just a moment, maybe like 2 or 3 seconds at the most,then after that it will just increase engine speed like normal.
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10-04-02, 08:24 AM
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I was going to say fuel pump, glad you figured it out. When the fuel pump starts to go bad, the motor will get vapor lock in the fuel system, and the pump can't push the fuel past that....
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