Hey Guys I am a renewed Bronco owner. Had a 90 when i was 16 and 10 years later ive stumbled behind the wheel of and 89. I got this bronco from my stepfather who had a zip tie rigged around the throttle to keep the idle up so it wouldnt die at the stop signsI have spent hours upon days this last 2 weeks on here searching for and answer. He had replaced the egr, cleaned the iac and tested the tps ( 1v at idle). So i replaced the IAC seemed like a good idea and cut off the zip tie. The truck did great until i got down the interstate and it cut off at the light after the off ramp. I guess i need to mention it happens when the engine gets warm. He thinks it is a vacuum leak so i went outside earlier cut the truck on and started sprayed hoses with a squirt bottle and had no results. I am not a mechanic, if it doesnt have 2 easily reachable bolts and a plug or very clear and easy instructions i cant do it lol. So i have 2 questions- The check engine light is not on so will it still show codes? I went to autozone but the didnt have the odb1 connector , I wanted to ask before i wasted time trying to get codes. Question 2 If it is the vacuum system should i try to tinker with it my self or should i just spend a little bit of money and headache and send it to the shop. I didnt want to start another idle thread but i had to
That site is great wow. I read up on pulling codes so i grabbed a piece of wire and pulled em. That was easy .I was ready to spend the 30$ on a reader lol. I pulled codes 21 and 24. Im gonna try to figure out what that means lol
Thanks everyone for your input i got a little caught up with christmas so working on the bronco got put to the side. I am taking the bronco into my buddy's muffler shop next week to remove my cats to see if this could be my problem. Ive spoke with a few people that said my cats could be clogged causing it to stall.
No im no positive on the vacuum leaks guess i need to pick some starter fluid before i start cutting pieces of the truck. No it only happens when the truck gets warm . It doesnt die all the time occasionally a sputter when i take off. Ive noticed it happens more when i have to come to a quick stop
well drove the truck a good bit today brought it home and proceeded with the starter fluid.(my bronco is not a daily driver) I sprayed the vacuum lines all a few times and had no jump or drop in rpms so im headed to the muffler shop now. Ill let yall know how it goes
Bronco Info: 1984 with a 351W, HEI Dist, Hedman headers, Holly carb, C6, 3in suspension lift, 35in Falken tires.
I am going to go with a vacu leak as it does it when its warm and not cold... having a vacum leak when the rpms drop used to kill my 94 marquie evertime I stopped.. 0.30 worth of vacum hose fixed it.. not sure about your model but spray all the hoses as sometimes its the least youd exspect..
When in doubt... use more duct tape...
1984 with a ecently rebuilt 351W, comp. cam, Holly carb and intake, 3in suspension lift, sitting on 35's