89 Beretta

[travismccallister]

I just bought an 89 Beretta, 4cyle for $700. I replaced the plugs and wires and put a new valve cover gasket on it. I have a fuel filter to put on it but haven't done it yet. It runs okay, but it has some problems that seem to be getting worse lately. When I start it up, the idle jumps up to 2000 and if I wait a second or hit the gas it will settle down to 1000. once I drive for a while and it gets up to temp if I let off the gas for a minute and slow down, then hit the gas to speed back up it bogs down to 600 rpm and tried to die, I have to keep hitting and releasing the gas pedal until the rpms go up. If I stop at a light it idles about 800rpms, but when I take off again it does okay. But if I slow way down like to less than 10 mph to yield, but then get on it a little to go again, it bogs way down to 600 rpms and tried to die. I have to keep pumping the gas until it goes up again. After the temp is up if I stop and put it in neultral, the rpms go to about 800 and idles rough. I am no kind of mechanic, but I usually try to do things myself. I don't know what a TCC module is or an EGR valve, so go easy on me please.
Thanks for any help.

[97TaurusGuy]

I am trying to recall here, I had an 89 with the 2.0 in it with the same problem. My suggestion would to be to pick up a Haynes manual from Autozone or other parts store for about $15. They are a life saver for the do it yourselfer. I think my problem was a MAP sensor which is pretty easy to replace. I also suggest checking your timing.

[jsgold]

TCC Solenoid a common problem but does not sound like it. When the TCC acts up your car runs normal, but when it warms up it will stall at stops (will act like a standard shift in high gear, jerking etc.). Will restart right away but stall as soon as put into gear until cools down. Since you have idle troubles there are several potential items to look at. Vaccuum hoses, Idle Air Control, EGR Valve, Throttle position sensor, and the MAP sensor. If I were you I would try to see if there are any trouble codes stored in the computer to help isolate the problem. Getting a manual of any kind is a good idea. Check all vaccuum hoses, leaky lines will cause idle problems. Clean the idle air control valve (has two small screws and a plug in, should be on/near your TB. These get dirty and will cause problems. The MAP and Throttle position sensor I would not deal with unless you get a trouble code first. They are not expensive but may waste money for nothing. Clean the EGR. I seem to remember my son's 89 actually had the EGR plugged off so wasn't used. Did not hurt it, but get another opionion on that.. His 89 developed a bad idle and we found a bad vaccuum leak. Also a dirty AIC. Ran well after that. Main thing- get checked for codes stored. Buy a cheap plug in tester from Advance, Autozone, etc. And get a manual.