renegade2345 Posted March 29, 2007 Share Posted March 29, 2007 ok, my 88 comanche has been cutting off while I'm driving. what usually happens is when i try to stop, it cuts off while i'm pressing the brake (not every time, about 4-5 times a week :headpop: ) and i don't know how to fix it!?!?! friend says to clean the throttle plate, i haven't tried that yet what can i do to make it stop besides take it to the shop? Link to comment Share on other sites More sharing options...
Frankensteinsmj Posted March 29, 2007 Share Posted March 29, 2007 If you have a volt meter check the tps to see if its adjusted correctly. Link to comment Share on other sites More sharing options...
87manche Posted March 29, 2007 Share Posted March 29, 2007 check the IAC. My guess is that it's gummed up or inoperative. When you take it out of the TB, DO NOT ROTATE THE PINTLE, that little guy will shoot across the shop. Just hose the hole that it sits in with some carb cleaner, and run a pipe cleaner in it. if that still doesn't work it might be that the IAC is bad. in which case the cheap replacement is a Holley part number, rather than the factory one. See here http://www.lunghd.com/Tech_Articles/Eng ... ostics.htm about 1/3 down the page for the IAC. Link to comment Share on other sites More sharing options...
Pete M Posted March 29, 2007 Share Posted March 29, 2007 Does it cut out instantly, like if you turned the key? Or does it sound like it chokes and stalls? Link to comment Share on other sites More sharing options...
87manche Posted March 29, 2007 Share Posted March 29, 2007 Does it cut out instantly, like if you turned the key? Or does it sound like it chokes and stalls? that's an excellent question. Link to comment Share on other sites More sharing options...
comancheman Posted March 29, 2007 Share Posted March 29, 2007 check the IAC. My guess is that it's gummed up or inoperative. When you take it out of the TB, DO NOT ROTATE THE PINTLE, that little guy will shoot across the shop. Just hose the hole that it sits in with some carb cleaner, and run a pipe cleaner in it. if that still doesn't work it might be that the IAC is bad. in which case the cheap replacement is a Holley part number, rather than the factory one. See here http://www.lunghd.com/Tech_Articles/Eng ... ostics.htm about 1/3 down the page for the IAC. can't u ruin other sensors by using carb cleaner on a fuel injected vehicle? Link to comment Share on other sites More sharing options...
Pete M Posted March 29, 2007 Share Posted March 29, 2007 I use a throttle body-safe cleaner, just in case. Link to comment Share on other sites More sharing options...
87manche Posted March 30, 2007 Share Posted March 30, 2007 check the IAC. My guess is that it's gummed up or inoperative. When you take it out of the TB, DO NOT ROTATE THE PINTLE, that little guy will shoot across the shop. Just hose the hole that it sits in with some carb cleaner, and run a pipe cleaner in it. if that still doesn't work it might be that the IAC is bad. in which case the cheap replacement is a Holley part number, rather than the factory one. See here http://www.lunghd.com/Tech_Articles/Eng ... ostics.htm about 1/3 down the page for the IAC. can't u ruin other sensors by using carb cleaner on a fuel injected vehicle? I use carb cleaner as a generic term, but yes, you need to get sensor safe stuff. Link to comment Share on other sites More sharing options...
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