I did have the surging idle problem but solved it with elimination of the cold air kit which caused my MAF meter to get a turbulent signal at idle. This is after I replaced the TPS, MAF meter, Computer, etc. Ouch.
Now, about every other day, the engine decides to rev between 1500 and 2500 and back and forth as if some funny resonance is occuring in the intake. It happened when I changed the IAB with an Autozone part for a '94 5.0L. My original coundn't be cleaned anymore and this new one worked to finally eliminate the surging idle once and for all but I am stuck with my car going ape every other day.
It seems to start if I run at a given RPM and load and it can happen on the highway or around town. It doesn't seem to be temp dependant as I have had it happen after a cold start and after a 2 hour highway trip.
I can fix it by free revving the engine to about 5K RPM. I sound like an Idiot but the engine returns to normal.
Anyone else with this problem?
Also - Where can I get a real IAB valve? The one that Autozone sells looks like the one off my '91. My '94 is plastic and is shaped different.
Thanks.
John
Now, about every other day, the engine decides to rev between 1500 and 2500 and back and forth as if some funny resonance is occuring in the intake. It happened when I changed the IAB with an Autozone part for a '94 5.0L. My original coundn't be cleaned anymore and this new one worked to finally eliminate the surging idle once and for all but I am stuck with my car going ape every other day.
It seems to start if I run at a given RPM and load and it can happen on the highway or around town. It doesn't seem to be temp dependant as I have had it happen after a cold start and after a 2 hour highway trip.
I can fix it by free revving the engine to about 5K RPM. I sound like an Idiot but the engine returns to normal.
Anyone else with this problem?
Also - Where can I get a real IAB valve? The one that Autozone sells looks like the one off my '91. My '94 is plastic and is shaped different.
Thanks.
John