Question about Toyota Pickup

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I was changing my fuel pump and accidentally broke a part on the water outlet next to the carburator. It looks like a vacuum line that has two inlets and it bolts on to the water outlet. Part #98925-05073. Can you tell me what this is and does it need to be fixed before driving long term? It is a 88 Toyota SR5 extended cab 2wd.

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This is a vacume themo valve, it helps the car warm up in cold weathercorrectly and it's likly that it wasn't working correctly before you broke it. Being theirs likly three or four of these thermo switches on your truck I can't tell you which one you broke. They work two ways, and after their aboutfive years old they don't work anymore. Driveability will be bothered if you leave it alone though so it's wise to do one of two things and you may need to drive it trying it both ways. Connect the two hoses together and drive it it may drive better cold and then as it warms up it might run even better that you rember and you might not notice a difference. Next just block the vacume hosees with a screw or something that fits and drive itagain and see what changes ( if any ) The part could be the EGR cold cut off. The car will likly run better blocking the hoses. No EGR. Or it come be the vacume advance for the ingtion timing. It'll likly get better gas mileage and run better with the hoses connectedto each other. These valves were used to make the car comply wth EPA emmission eegulations and now your car is old enought that you may have troble buying a thermo vacume vavle. I looked in my parts lookup and interchange on the number you provided and did'nt find any listings. The dealers were only suposed t keep this kind of part for 10 years. My listings for your truck only fround fuel injected versions. You did'nt list which engine you have either a 4 or a 6. Carbs ended in the USA in 85, on the 4 in 81. So you say you have amechanical fuel pump and a carb, you do just not in my part of the world.

Posted on Oct 17, 2010


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