garyweb3 Posted June 18 Share Posted June 18 What are the correct names or terms for these devices. The small one is on the intake manifold and the larger one is on the throttle body. 1987 Comanche 2.5L. Thanks. Link to comment Share on other sites More sharing options...
eaglescout526 Posted June 18 Share Posted June 18 IAT or intake air temp (top) ISA or idle speed actuator(bottom) Link to comment Share on other sites More sharing options...
garyweb3 Posted June 18 Author Share Posted June 18 I cannot find the IAT at any parts sellers and the ISA at NAPA or RA don't look like the one I have. Link to comment Share on other sites More sharing options...
89 MJ Posted June 18 Share Posted June 18 How did you determine these parts need replacing? I bet if anything, the IAT just needs cleaning and the ISA might need adjusting. Link to comment Share on other sites More sharing options...
eaglescout526 Posted June 18 Share Posted June 18 ISA might need a rebuild. I offer rebuild or core exchanges on those. Link to comment Share on other sites More sharing options...
garyweb3 Posted June 19 Author Share Posted June 19 To tell the truth I'm just guessing here. About 3 years ago I started having a bogging problem occasionally when starting to accelerate. It would go away when I shifted to 2nd. It got worse over the years and now doesn't want to idle. Starts good but I have to play with the gas to keep it running but after about a minute it quits. Starts right back up but keeps doing the same thing. I thought it wasn't getting enough fuel so I changed the pump and filter which made no difference. I'm in the process of replacing manifold gasket so I haven't been able to see if that made any difference or not. I did clean the IAT sensor too. Link to comment Share on other sites More sharing options...
garyweb3 Posted June 20 Author Share Posted June 20 On 6/18/2025 at 6:11 PM, eaglescout526 said: ISA might need a rebuild. I offer rebuild or core exchanges on those. How would i go about having that done? Link to comment Share on other sites More sharing options...
eaglescout526 Posted June 20 Share Posted June 20 1 hour ago, garyweb3 said: How would i go about having that done? Shoot me a PM Link to comment Share on other sites More sharing options...
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