insano 0 Posted July 7, 2006 Share Posted July 7, 2006 I need some help.I recently bought a car that was fixed up from salvage. We put a semi-new motor in it (28k) and did some body work.When we got the motor going we had two problems.1) It idles around 800 but appears to be too low. It shakes pretty badly at times like it's trying to die.2) When at low idle the belt slips at the A/C compressor. The compressor is fairly new, and will only slip when at low idle. Just recharged the tank as well.3.) Ok, maybe there are three problems. Check engine light was on and said the O2 sensor was tripped. I added some injector cleaner in hopes of fixing the problem, because that's what they told me to do. It didn't really make sense, but I did it anyway. I will get that checked once I'm through 1 tank.Any thoughts about maybe these problems are linked? I figure the O2 sensor is probobly what is throwing off the idle, since the fuel ratio is probobly off. But why would the A/C start locking up as well? I'm stumped. Link to post Share on other sites
SBriand 4 Posted July 7, 2006 Share Posted July 7, 2006 timing belt could be a problem with the idle as well. What kind of car? Link to post Share on other sites
Yoda 1 Posted July 7, 2006 Share Posted July 7, 2006 I need some help.I recently bought a car that was fixed up from salvage. We put a semi-new motor in it (28k) and did some body work.When we got the motor going we had two problems.1) It idles around 800 but appears to be too low. It shakes pretty badly at times like it's trying to die.2) When at low idle the belt slips at the A/C compressor. The compressor is fairly new, and will only slip when at low idle. Just recharged the tank as well.3.) Ok, maybe there are three problems. Check engine light was on and said the O2 sensor was tripped. I added some injector cleaner in hopes of fixing the problem, because that's what they told me to do. It didn't really make sense, but I did it anyway. I will get that checked once I'm through 1 tank.Any thoughts about maybe these problems are linked? I figure the O2 sensor is probobly what is throwing off the idle, since the fuel ratio is probobly off. But why would the A/C start locking up as well? I'm stumped.May as well be rocket science to me, good luck with that. Link to post Share on other sites
insano 0 Posted July 7, 2006 Author Share Posted July 7, 2006 Ford ZX-2. Timing chain would affect the car when running at all speeds though wouldn't it? Link to post Share on other sites
Royal_Tour 0 Posted July 7, 2006 Share Posted July 7, 2006 O2 sensor doesnt make sense, I have had o2 sensor problems, u just get horrible milage and performance.is it just idling bad or do u notice a loss in horsepower? plugs and wires could be an issue if you notice slow pickup,could also be your fuel filter, might need to be replaced. if its drives fine when gasing but idles bad, it might be not much fuel is geting through.fuel filter is also cheap.with the new motor you should have had new injectors right? or at least 27k miles on.they shouldnt be the problem.is it 5 speed or auto?and your a/c isnt a big deal, you should be able to bi=pass the a/c for the price of a new belt w/o air .unless you want air Link to post Share on other sites
No_Neck 0 Posted July 7, 2006 Share Posted July 7, 2006 had a problem similar to this, said it was the EGR valve. thats all I got for ya. Link to post Share on other sites
Suited_Up 2 Posted July 7, 2006 Share Posted July 7, 2006 I had problems with my car shaking and not accelerating very well.It wound up being the O2 sensor. So I dunno.It mostly did it when it was wet outside though.I know nothing about cars though. Link to post Share on other sites
insano 0 Posted July 7, 2006 Author Share Posted July 7, 2006 O2 sensor doesnt make sense, I have had o2 sensor problems, u just get horrible milage and performance.is it just idling bad or do u notice a loss in horsepower? no loss in HP, just bad idlingplugs and wires could be an issue if you notice slow pickup,checked and recheckedcould also be your fuel filter, might need to be replaced. if its drives fine when gasing but idles bad, it might be not much fuel is geting through.fuel filter is also cheap.already replacedwith the new motor you should have had new injectors right? or at least 27k miles on.they shouldnt be the problem.the motor sat for a while before we put it in, so the injectors might have some residueis it 5 speed or auto?autoand your a/c isnt a big deal, you should be able to bi=pass the a/c for the price of a new belt w/o air .unless you want airit gets pretty hot here, would definately like to keep the a/c Link to post Share on other sites
speedz99 145 Posted July 7, 2006 Share Posted July 7, 2006 You might want to check the, uh, s... specs on the end line for the rotary girder. I'm retarded. Link to post Share on other sites
insano 0 Posted July 7, 2006 Author Share Posted July 7, 2006 You might want to check the, uh, s... specs on the end line for the rotary girder. I'm retarded.nice... is that fezzig (sp?) ? Link to post Share on other sites
No_Neck 0 Posted July 7, 2006 Share Posted July 7, 2006 nice... is that fezzig (sp?) ?Tommy boy Link to post Share on other sites
speedz99 145 Posted July 7, 2006 Share Posted July 7, 2006 You're both right. Link to post Share on other sites
insano 0 Posted July 7, 2006 Author Share Posted July 7, 2006 Tommy boyI was asking about his avatar.I would never miss a chris farley quote. I was a big fan. Link to post Share on other sites
brvheart 1,768 Posted July 7, 2006 Share Posted July 7, 2006 I'm a transmission guy, not an engine guy... but I have about 35 mechanics at my beckon call, so I can ask around on Monday... but that probably won't help.Your idle problem could be any of the things already mentioned... EGR valve, Injectors, O2 sensor, ect ect.....As for the AC Compressor locking up... have you checked your tensioner? Tensioners go bad very frequently. Also you may need a new compressor, but you hope not. Many tensioners are very cheap, and that would be my guess, if the belt is just slipping off. Link to post Share on other sites
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