Question about 1999 Isuzu Trooper
Head gaskets were replaced engine did not fire got spark,air,fuel,injector pulse ect. Checked cam timing with specs and several other mechanics and the belt is clearly marked with white lines. 150 psi right bank 0 psi left bank.
Posted by Anonymous on
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Posted on Jan 02, 2017
The cam pulley notch goes in line with the mark on the front cam bearing cap and the crankshaft pulley goes at 12 o'clock - its got a tiny mark on the back lip that lines up with the mark on the cover .
Did you take the cams off in one lump or split them ? if you did come back on here for how to time them up .
Posted on Feb 21, 2010
replacing the head gasket solved one problem.
But, you have a leakage problem with oil and/or antifreeze now.
The head gasket could be failing again, or you have a cracked block or cylinder head.
Take it back to where it was worked on and say that you want it fixed, please.
good luck on this.
Posted on Jul 10, 2010
1997 isizu trooper when starting sometime the idle runs very high then come down and sometime the car stop run when you remove you foot from the gas paddle it ilde so low that its shut off
Posted on Jul 04, 2011
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Most probably its a low fuel pressure related problem.Get the fuel pressure checked.If its low then this is faulty fuel pump and clogged fuel filter issue.the other possibilities are,-----
A car that cranks over but doesn't start, in many cases will be due to a bad fuel pump, a broken timing belt, an inoperative cam sensor or crank sensor. Also this problems are related to faulty spark plug. Check the spark at spark plugs when you start the car. Do you notice any spark. Actually you should see. If in case there is no spark then it's a spark plug problem. Also the coil pack gives power to spark plug. So check the voltage at coil pack. It will show 12 volt.If there is no voltage noticed at coil pack then its faulty coil pack that has to be replaced.If all the possible options checked out ok then check the car starter. The starter gets power from battery to start the care. If the starter is faulty then it will not let the car to start. Also check and confirm that there is fuel in the car. If it very low fuel then in some cases this causes the problem. Also check and confirm that fuel pump is functioning properly and the fuel filter is not clogged. One of the easiest ways to check for a fuel pump related problem is to spray a little starting fluid into the air intake while trying to start the car. If the car starts momentarily, then there's a good chance the fuel pump is not working or the car is out of gas. You can also listen for the fuel pump's humming sound when the key is first turned on. Also if a inoperative fuel pump is suspected, a good technician will always check to verify there is power and ground being supplied to the pump, to eliminate the possibility of a bad relay or electrical issue. Fuel pressure can be checked with a pressure gage and if there is pressure, pulse can be checked at the fuel injectors in several ways including the most common, with the use of noid lights. If the injectors don't have pulse the engine won't start. ---------- This troubleshooting tips will help you to solve the problem.Thanks.Helpmech.
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