20 Most Recent 1990 Toyota Pickup - Page 9 Questions & Answers

You most likely have a leaking power brake booster. This will cause a vacuum leak every time you step on the brake. If you listen, you will probably hear the "hissing" inside the vehicle when this happens.

Sounds like it might be a bad fuel pump, check fuel pressure should be 2.8-4.3 psi

do you mean stub axle ?? if so then i would take it to a local garage as it not a difficult job but it does require a few tools ,if i had seen this question yesterday i could have sent you a complete car for spares ,the big ends had gone and it wasnt worth repairing but the autobox was ok and the rest of the car customer didnt want it repaired and i had to pay the scrapyard 50 euros to come and pick it up

most likely is burning some oil,I would expect that from a 21 year old truck.Mine does the same thing.Top if off and keep an eye on it.Good Luck!

Inspect brake booster vacuum line from engine intake to brake booster for leaks also inspect brake booster check valve, more than likely your brake booster is causing a vacuum leak to your Intake thus leaning mixture wich increases idle rpm

Hi and welcome to FixYa!
Yes it can be the u-joint or cross joint. If they are worn out they tend to grind or squeak. Do check the oil on the differential too to avoid breakage.
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its a wheel bearing. .will need to be inspected to determine the correct one. Also tires could also do this if the steel seperated internally. Rotate the suspected tire to see if it follows the tire.

When was last oil change? I'd start there with a good 10w-40 wt oil and filter.

These have a nylon drive gear in the transmission you need to pull that out and look at the drive gear also look in the trans. and see if the main shaft drive gear is loose on the shaft if the speedo cable is old it may be binding it snakes through the body and has alot of bends

Hi there;
Have you had your alternator checked?
Hope this helps.

fill power steering fluid if it is full replace pump

Check the fuel and air filters for blockage or dirt.

Try replacing fuel pump and fuel filter. It sounds like connections at fuel pump are loose, corroded or the pump itself has gone bad.

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yes becareful not to strip the threads when pulling it off

have you checked the fluid in the clutch master cylinder? make sure there is fluid and the slave cylinder on the transmission is moving the clutch. if it is then the clutch may be worn out and not disengaging the clutch which means the clutch is still turning and you cant put it in gear. hope this helps

did it run fine before the timing ( did you have to replace the chain or belt,tensioners ?) I would re-check the cam timing as it sounds like the timing is off by one cam gear notch.

Hi and welcome to FixYa!

Looks like that you have a bad TPS (throttle position sensor). If the TPS is faulty the car tends to have a low rpm which may result to stalling. I strongly suggest that you have the TPS replaced to resolve the problem.

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