Did you test the exhaust back pressure ? 1 to 1/2 pounds are normal readings of the pressure. Could be clogged catalytic converter need an exhaust backpressure test. Valves intermittent valve problem, broken rocker, push rod. Thanks MEGABUCK
It's inside of the gas tank, siphon the gas out before removing the tank, no worries it's a simple job and you'll get it!
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I'm assuming you a talking about a Turbo Diesel. Diesels can be complicated. I would suspect the fuel injection pump. It must reach 1900psi to overcome the compression.
I've had pumps go bad because of the ultra high tolerance needed in the pump itself to get to that performance level.
I stopped to assist a gas powered Winnebago stuck on the highway a while back. The engine would run but not produce much power or rpm's.
The problem turned out to be a plugged muffler which seriously reduced the air flow to the intake system and as a result the power and ability of the engine to rpm's or power.
As modern day vehicle engines are computer controlled there could be systems that are not functioning properly...which should log a code and activate a warning light on your dash board. ODBII diagnostics is always the first step to take when trying to isolate a fault.
The Internet, though, has a large number of web sites where
you can buy service manuals and schematics from bookstores,
publishers, and other collectors. Here is just a sampling of
what sites are out there:
Factory Auto manuals
http://www.factoryautomanuals.com/
search for : factory service auto repair manuals
Repair Service Manuals
http://www.repairservicemanuals.com/
the largest collection of Automotive Repair Service Manuals
and Owners Guides on the internet. Our database currently
holds over 54,000 entries dating back from 1940 to more
recent 2011.
about Chilton Repair Manuals
http://www.chilton.cengage.com/
about Haynes Repair Manuals
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Haynes auto manuals
http://www.haynes.com/
Put park brake on or block wheels, and shift into neutral (if possible), If not go to tranny and pop the cable off the tranny lever (pry off with screwdriver). Turn tranny shift lever, until it clicks twice, leave here for later adjustment. Follow the cable to the adjuster, pull out the flat steel retainer clip, pinch the sides to remove cable from bracket. Remove upper covers below the steering wheel. Remove kick panel below steering colomn. Remove cable from steering wheel shifter assembly (pry off and remove clip same as at tranny). Remove the side kick panel and follow cable along floor. You may find it easier to remove the driver seat (4 nuts on floor and wiring). Pull cable thru floor and replace. Reverse procedure to install. Lock the cable and clip at steering colomn, but leave the clip off at tranny. The tranny should still be in neutral. Now turn key to run and shift the shifter into neutral. At the tranny side cable there is a white square button, press in and lock cable to lever. install retainer clip. move shifter thru ranges and ensure it locks in park. Readjust if needed by pressing button and moving shifter lever on tranny.
The pump is located in the tank.Can you here the pump come on when you cycle the key on?If you try an alternative fuel such as throttle body cleaner and it starts and runs at least till it burns up the cleanen.Suspect a faulty fuel pump or connection to the fuel pump.
wont turn over or wont start, if it wont turn over your alternator probably came unpluged or went out then drained your battery, if it turns over but wont start you lost the timing chain