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Old 10-04-2014, 07:31 PM
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overheating issues in '88 xj w/ 350

Finally got my '88 Cherokee back from a 1.5 year stay at the shop (don't ask) and now it's overheating (and not starting , but that's another issue). This is my old project truck, with a 350 chevy motor.
After the t-stat kicks in, it slowly starts creeping up to around 230; it doesn't go much further than that if the A/C is off.
Before I took it off the road, it was staying even at 200-210, even on a hot day in stop and go traffic. Right before I handed it off to the shop, the epoxy on the griffin radiator sprung a leak. The shop had it repaired. Radiator isn't leaking, but now I have the overheating problem.
Anyway, I'm assuming the radiator is somehow shot, and I have a few questions:
1) is there ANYTHING else I can check before sinking $$$ into a new radiator? This is an aluminum griffin, and they're not cheap. I don't mind spending the money, but if I don't have to, I'd prefer not to. Radiator has been flushed, outside cleaned, all new hoses, the electric fans work perfectly.
2) I can't seem to find the radiator I bought anywhere -- I'd like to just buy the same one, or at least one with the same fittings/locations.. I can't find it on griffin, or on novack, where I bought it from them a few years ago (I have an email into them, and will call them on Monday). Anyway, anyone recognize this radiator, and know where I can get one? No identifying marks on it as far as I can tell...



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Old 10-06-2014, 06:49 AM
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Re: overheating issues in '88 xj w/ 350

any thoughts?
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Old 02-08-2015, 01:46 PM
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Re: overheating issues in '88 xj w/ 350

Maybe a lower temperature thermostat?
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Old 05-20-2015, 04:12 AM
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Re: overheating issues in '88 xj w/ 350

I would make sure your thermostat is opening, your lower radiator hose has a spring in it so it won't colapse under pressure and that the fans are on. It is possible that your fans are not pulling enough air. Also make sure your cap is holding pressure.
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Old 05-20-2015, 11:23 AM
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Re: overheating issues in '88 xj w/ 350

thanks for the assist, this is a pretty ancient post -- I've since replaced the radiator, all is well. T-stat was fine, but ever since the radiator had a leak and I had to have it re-sealed, it just hasn't been the same.
everything's fine now :-)
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