Relay question

[Miguel Antonett]

Is it normal for relays to get hot?

or getting hot (hotter than other nearby relays) it is sign of replacing?

[equality72521]

Generally, if it's getting hot there is either too much current flowing through it or there is a high resistance connection (bad connection). Which relay is it? It could be the load on the relay is pulling higher current than usual causing the relay to heat up.

[Miguel Antonett]

Here is the whole story:
I cranked the car, at the instant the engine started running there was an usual pop from the engine bay, idle stayed high as usual - 30 secs or so - and droped normal. Then, I tried to lower the windows and nothing happened - either side (first time ever in 20+ years) went to the fuse box all OK but changed the windows fuse anyway - nothing. Checked the relays and notices the first really (from the bulkhead towards the front of the car) hot the second one a little cooler and cooler as the third, fourth... removed the first one again and left it out because it was just too hot to me; the car ran like crap no turbo power, idle at 2K and just wrong... Turned around, got to the house removed all relays including the one in the engine bay - facing the intercooler, cleaned all connectors and put them back on = everything is runnig well and the windows go down like nothing ever happened.
Should I replace all relays for new ones? do relays go bad with time? those are original ones (30 years old)
I'm a little puzzled here...

[Akila]

My relays were looking kind of old, replaced em. Cleaned the areas in the fuse contact points with a wire wheel on the dremel. Seems like the relays & fuses for the fuel pumps get hot. I finally changed out my fuse block to ATO type fuses . Havent check them lately as to heat. Did blow one of the old ceramic fuses, which started the whole process of upgrading.