Katastrophic

like the title says when it's hot outside (90F+) when the car is at an idle and the AC is on sometimes it will just die out, no clunking like a stall but just shuts off. everything else, AC, stereo, lights etc stay on (not important but more info is better right) it happened while rolling, stopped etc.

btw the cars a stock d15b7 4dr eg
also if i go to hit the gas after a stop nothing happens/the car bogs for about a sec or 2 and then the car gets power.

any input would be nice, if you need anymore info i'll edit it in.

Katastrophic

i need help asap guys
i have 2 100 degree weeks coming up and this is bugging the hell out of me.

shogee

Locked up ac compressor possibly.

appelsos

does the car ever have any bogging issues WITHOUT ac at all? it could be that a/c is just making the problem bad enough as it draws extra power from the motor, and it just isnt as noticeable without a/c on.

i would reccommend checking all of your vacuum connections and cleaning your idle air valve first to see if that helps at all. really simple to do and can go a long way.

i had this same problem in my old integra on hot days, i remedied it by changing spark plugs, fuel filter, vac lines, cleaned fitv and iacv. just tune-up maintenance stuff really.

Slacker93eg

My first impression without even reading your post was a locked up A/C compressor. Does the belt squeel when your driving or at idle or anything? How is the belt looking?

grumblemarc

iTrader: (4)

What's it idle like without the A/C? When was the last FULL tuneup?

Former User

What year Civic/Del Sol?

Does the A/C condenser fan fail to run when the A/C is on?

Did you recently recharge the A/C system with refrigerant?

Katastrophic

ok to help you guys out it's a 92, so R12 iirc
the idle seems to be ok without the AC on, once a few months back on a random hot day did the belt squeal but it seems fine (not a big concern)

the idle sits around 5-700 no AC but if i come to a stop with the AC on it will drop below the 500 line which in itself bothers me.

i will probably have it recharged within the next week and when i have time clean the IACV, can someone link me the IACV cleaning thread on the FAQs? if not i'll go find it.

i don't quite know if this is relevant but if i drive around with the AC off and then turn it on full blast a peculiar smell comes out for a minute (i usually don't notice but passengers in my car have) and after that it goes away. (if i start the car with the AC on there will be no smell)

Former User

Katastrophic

yes, yes it does

last tune up was around 6 months ago.

Former User

Measure the high and low side refrigerant pressures. They may show that the condenser is bad.

Jader714

get a new car battery

Katastrophic

just bought one 2 months ago because "someone" left the lights on and completely killed the battery beyond recharging.

Jader714

when your idle whats your rpm at?

Katastrophic

cleaned the IACV and good god, after 19 years of abuse that thing had dirt caked into, around, and on it. 1 bottle of simple green and a little bit of brake cleaner goes along way. Also you can rinse off/out your IACV with water just make sure you dry it all the way (blow dryer to make sure)

1 downside is that the gasket that goes on it was so old that when we went to pop it out, it just broke off and for the time being i just put it back in and used silicon to kinda glue it in place. (NOT A PERMANENT FIX) FYI

went to start the car, idled at 1500 Cold start, took it for a run, (nighttime so i had headlights on and ran the AC to check) sat at 500 with headlights and ac and went up once the lights are off. All in all i believe this fixed it but i really won't know for 2 days because it won't reach 100ish degrees until then.

thanks for the help guys, if this doesn't end up working out i'll replace the condenser or the belt.

K-Rex90

tune-up?
fan?