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#1
04-09-2008, 01:07 PM
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radiator clogged? 94 toyota truck
my radiator in my 94 toyota truck keeps spitting up into the overflow container after a short trip and doesnt get sucked back into the radiator, so as i lose coolant each trip/stop and my temps get higher and higher during the day...
no coolant in oil, no oil in coolant, new thermostat (tested it) and new radiator cap. the radiator looks like its flowing across on top and the coolant looks good. could the radiator be clogged in spots and still look like its flowing well? ive had clogged radiators that were quite obvious because you could see all the crap in the coolant, but this one looks good...
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'74 formula 400, w/shaker (3 scoops) black deluxe interior, '70 406 balanced assembly, .30 trw slugs, moly rings, 4x heads 2.11/1.77 stainless valves, ra 4 cam, e-rpm intake, holley 750 vac. sec, msd hei, hooker headers w/ dual 3'' flowmaster 50 series ending at axle, t400 w/ GM6 convertor, transgo shift kit, b&m starshifter, 3.08 gears, centerlines, 265/50-15 bfg's rear and 235/60-15 front...yes im over cammed but it is still very fun... Last edited by form406; 04-09-2008 at 01:44 PM. |
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#2
04-09-2008, 01:22 PM
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The first thing I'd try is a new radiator cap.
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Lee Peterson ------------- "I didn't expect a kind of Spanish Inquisition...!" '69 Cameo White RA III Judge, 4 speed, owned since 1977 -- my first car. |
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#3
04-09-2008, 01:46 PM
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actually the radiator cap was the first thing i replaced (i just edited my post to reflect that as well)...
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'74 formula 400, w/shaker (3 scoops) black deluxe interior, '70 406 balanced assembly, .30 trw slugs, moly rings, 4x heads 2.11/1.77 stainless valves, ra 4 cam, e-rpm intake, holley 750 vac. sec, msd hei, hooker headers w/ dual 3'' flowmaster 50 series ending at axle, t400 w/ GM6 convertor, transgo shift kit, b&m starshifter, 3.08 gears, centerlines, 265/50-15 bfg's rear and 235/60-15 front...yes im over cammed but it is still very fun... |
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#4
04-09-2008, 02:44 PM
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Sounds like a head gasket.
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You lost me at LS. |
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#5
04-10-2008, 11:20 AM
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head gasket with no oil in water and no water in oil?..how do i check fan clutch?
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'74 formula 400, w/shaker (3 scoops) black deluxe interior, '70 406 balanced assembly, .30 trw slugs, moly rings, 4x heads 2.11/1.77 stainless valves, ra 4 cam, e-rpm intake, holley 750 vac. sec, msd hei, hooker headers w/ dual 3'' flowmaster 50 series ending at axle, t400 w/ GM6 convertor, transgo shift kit, b&m starshifter, 3.08 gears, centerlines, 265/50-15 bfg's rear and 235/60-15 front...yes im over cammed but it is still very fun... |
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#6
04-10-2008, 11:43 AM
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The fact that coolant doesn't get sucked back into the radiator from the reservoir means you have a leak somewhere. I think the overheating is probably secondary -- if the system was working properly, coolant would get pushed out the overflow when the engine overheated, but get sucked in when it cooled down.
A head gasket isn't that likely to leak coolant into the oil. If it's blown between the cooling system and cylinder it'll behave exactly like it is. My suggestion is to do a leakdown test with the radiator cap off. When you pressurize the leaking cylinder the coolant level will rise.
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Lee Peterson ------------- "I didn't expect a kind of Spanish Inquisition...!" '69 Cameo White RA III Judge, 4 speed, owned since 1977 -- my first car. |
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#7
04-10-2008, 12:32 PM
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lpete thank you for the informative post...would putting a little stop leak in the radiator hurt anything?...i put so much time into my firebird yet the toyota is my $$$ maker for the firebird and food...i cant have this truck out of service like an american airlines jet!!!
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'74 formula 400, w/shaker (3 scoops) black deluxe interior, '70 406 balanced assembly, .30 trw slugs, moly rings, 4x heads 2.11/1.77 stainless valves, ra 4 cam, e-rpm intake, holley 750 vac. sec, msd hei, hooker headers w/ dual 3'' flowmaster 50 series ending at axle, t400 w/ GM6 convertor, transgo shift kit, b&m starshifter, 3.08 gears, centerlines, 265/50-15 bfg's rear and 235/60-15 front...yes im over cammed but it is still very fun... |
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#8
04-13-2008, 03:28 AM
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i put stop leak in and now the radiator is sucking up the resevoir upon cool down...ill be doing a compression check...after i polish formula hood...
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'74 formula 400, w/shaker (3 scoops) black deluxe interior, '70 406 balanced assembly, .30 trw slugs, moly rings, 4x heads 2.11/1.77 stainless valves, ra 4 cam, e-rpm intake, holley 750 vac. sec, msd hei, hooker headers w/ dual 3'' flowmaster 50 series ending at axle, t400 w/ GM6 convertor, transgo shift kit, b&m starshifter, 3.08 gears, centerlines, 265/50-15 bfg's rear and 235/60-15 front...yes im over cammed but it is still very fun... |
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#9
04-13-2008, 11:16 AM
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Is this a 3.0L v6 engine? They are bad for head gaskets blowing and leaking coolant into #6 cylinder and going out exhaust.
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64 Lemans hardtop 4spd, buckets |
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#10
04-13-2008, 11:32 AM
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Quote:
__________________
Lee Peterson ------------- "I didn't expect a kind of Spanish Inquisition...!" '69 Cameo White RA III Judge, 4 speed, owned since 1977 -- my first car. |
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#11
04-13-2008, 11:36 AM
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Toyota will pay to do it once, yes we have replaced many short block due to block corrosion around #6 and #1 cylinders, Not sure if this trucks is applicable but worth looking into at his local dealer.
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64 Lemans hardtop 4spd, buckets |
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