1989 Chevrolet Suburban - Answered Questions & Fixed issues

Yes typical problem and know about the pain in the #$#$ about getting the tank down. The relay is under the hood and in the relay box. Quick check the fuel pressure on the injection rails. Yes you could add an inline fuel pump to the line and see if that would create enough pressure. I do that on my race cars.

Take the airbox cover off spray some starting flood into the throttle body see if it fires if it does week fuel pump

Your serpentine belt tensioner may be bad,not holding enough tensioner and not letting your alternator keep a charge on your battery,get some one to sit in your vehicle,open hood,have them start it while you watch the belts turn and have them rev the engine up to see if the belt turns loosely.another thing to look at is the A.C.compressor locking up .Power steering pump could be locking up,just check it out while it's running and see.

Go this site and look up the value, based upon the condition and options for your vehicle. http://www.kbb.com/chevrolet/

1989 model should be mounted on the intake near the distributor.

There are MANY reasons why a car of that age will lose power, not the least of which is engine wear and "blow-by" (a term used to describe the loss of compression past rings and valve seals, usually accompanied by a loss of engine oil). If your vehicle is burning crankcase oil, or if you remove your oil cap while the car is running and feel air coming out of the oil fill, your engine is really worn and will probably have a hard time going up hills. Also very common on vehicles of that age is rust in the fuel tank, which will clog the pickup screen (or "fuel sock"), and also clog the fuel filter with rust particles. A good place to start is replacing your fuel filter, and see how much RED is visible. (Any RED you see in what comes out of the input side of your fuel filter is rust from the gas tank.) If you get red gunk out of your old fuel filter, you'll definitely need to clean or replace your fuel tank and replace the fuel sock as well. Next thing to check is the last time the vehicle had a major tune-up. Was it over five years or 25,000 miles ago? Go ahead and do a major tune-up. (Do all that applies to the engine you have: Plugs, wires, cap, rotor, coil, coil packs, throttle body clean, static timing adjust, ODB code clearing, and complete fluid change INCLUDING transmission AND both differentials). As far as the vehicle "blowing out transmission fluid," I can't answer that at all, not knowing where it's blowing it out from.

coil breaks down when they get hot try that.

You can find them here. See Wiring schematics for 1999 Chevrolet Express van Google Search

have a pressure test done on the cooling system to find the leak. Check the heater core when the system is pressurised as well

recently had new alternator on my ford focus 2001,as last one was overcharging.lately ive noticed that whilst driving my speedo drops to zero and battery light comes on could this b the speed sensor needs replacing? would this cause battery light to come on?

It will but you will lose Overdrive and that will cost you a lot of gas money in a Suburban. You will have to rewire the neutral safety switch as the TH350 only has 2 wires.

Is the check engine light on ? It could be a vac leak or a problem with the idle air control valve.

have the fault codes read for a faulty sensor. replace any found

An EGR Valve can cost around $115 for a brand new one or used, around $50. The cost is going to depend on the car model and year.--------------------------------------------------------------------------------KWP2000 Plus ECU REMAP Flasher Tunning

it could be your injection system you should see if your fuel pump is working properly

passengers side firewall behind plastic cover thats about 12 inches long with a bump in the middle,where the battery cables hook together ,there should be 2 relays there and i think its the one closest to the drivers side

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there is always a small percentage that you have a electrical short, but 90% of the time it will be a FUEL SENDING UNIT, not to be confused with the fuel pump. Check your electrical, Especially the ground wire near; on top of the fuel sending unit which is conviently located on the TOP of your fuel tank, Sorry for the bad news, but you're going to have to drop the tank. Since yo're down there, best to replace the fuel pump since it's all right there in front of you.

Then you have a failed fuel pumpCan you hear it run if someone is back there& you cycle the key on & offCheck fuel pressure with a gauge on engine portAlmost half the people here this week need to buy a fuel pressure gauge.