Question about Jaguar XJ6

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I have a 85 jaguar xj6. The fuel pressure at the cold start inj, is 150 psi.Car will not run. Fuel pump is working. Have spark at the pluges. The ecu is okay. Need some help? Thanks

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Check for voltage to fuel injectors..A set of noid lights will help with this...Good Luck

Posted on Sep 15, 2008

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What is wrong if the car won't start? Also if the engine turns over?


Could be several things. A clogged fuel filter, a non-working fuel pump, or a defective crank (angle) sensor, for example.

A defective crank angle sensor will prevent the ECU from knowing when to injecting fuel or make spark so it won't do either! The ECU will store a code if that is the problem.

Check the fuel pressure in the fuel rail. If none, the fuel pump may not run (or the in-line fuel filter is clogged.)

Check for fuel pressure and spark. If the gas is fresh, it ought to start.




Feb 11, 2015 | 1999 Jaguar XK8

1 Answer

No start has spark injector pulse, fuel, no codes


did you fix this yet, old post.
which engine, we cant guess that. ever.? (we know it's not a diesel)
if the engine has spark and fuel
and it dont start:
it's flooding? (spark tips soaked in raw fuel, ) we look at them......
did you try the operators guide trick, cranking with wide open throttle?
this cuts fueling , clearing a flood condition.
spec, is 120 to 150 PSI. 4.0L
or 4.7L?
good spark to ALL cylinders is the correct test, not just 1.
does the timing light show correct timing? cranking? spark timing?
ever do a tuneup, with new spark plugs yet.
If the above is true it will start. or at least on test fuel.

one way to find problems like this , if the spark is good.
is to cut all fuel injections. (i kill the fuel pump, ask how.)
and start car with test fuel, if it runs for 3 seconds each try.
then all is good , engine and spark, if not , not.
a simple test. that is. and works on all gas engines.

watch scotty.
http://www.youtube.com/watch?v=064Ilsz8Fzg&NR=1&feature=fvwp

in this case he assumes the engine is good. and timed right.

FSM
http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service

I can run any engine, with no fuel in car. sure can.
and is safe to do.
use CRC.
http://www.crcindustries.com/ei/product_detail.aspx?id=05671

Feb 07, 2014 | 2000 Jeep Grand Cherokee Laredo

1 Answer

CAR STARTS THEN DIES RIGHT OFF HAVE FUEL AND SPARK COMPRESSION IS ABOUT 105


Sound like the fuel pumps not doing it job if the fuel pressure drops off quick. Might also be the regulator but most likely the fuel pump is not pumping enough. They only time the fuel pressure should drop off it when you bring the rpm up and it shouldn't drop off that much maybe 5 psi at most any thing below that i would change the fuel pump.

Dec 20, 2011 | 1998 Toyota Camry

1 Answer

My xj6 jaguar has a code fuel 44 set and now it will not start. a couple of time before in the morning, it would start but run poorly would not take gas . let it run for a few seconds and it clears up but...


First...Check th cold start injector.

If the E.C.U. is faulty it is possible that injectors will be inopeative. The E.C.U. may also be responable for any degree of icorrect fueling. Before suspecting the E.C.U. for fueling problems, however, all other likely components should be proven good.

May 24, 2011 | 1993 Jaguar XJ6

1 Answer

1986 Jaguar XJ6 Won't start. rolls over but that is it. replaced fuel pump relay and fuel pump. seems to have fuel at pump inlet, nothing comes out the outlet. I am lost. car ran out of gas before this...


if your fuel pump and relay are new, how about your fuel filter, if your fuel pump is working but no fuel turns out, check fuel pump polarity, if ok, there will be a clogging in fuel lines, take a high pressure air and plug it to fuel outlet in fuel lines test port, allow air to go back up to fuel tank and observe if the air goes, if not, check or change fuel line, if the air goes to tank, direct your fuel relay pin 30 and 87 and check if the fuel runs to the injectors, if not, change a good fuel pump

Jun 27, 2010 | 1990 Jaguar XJ6

1 Answer

1995 xj6 jaguar, doesn't liketo start when cold,


check your flowmeter, this electronic device moniters air/fuel mixture, commonly located on the inlet manifold near injectors

Jan 10, 2010 | 1995 Jaguar XJ6

2 Answers

I'm working on a 95 xj6 the car had set up for 5 years drained all the gas and put new fuel in it. The problem is it won't start. It's getting fuel to the cylinders and it has good spark but still won't...


Check again, but spray a litle heavy oil in the low cylinders first, see the compression comes up. Try a brand new battery, sounds strange, but try it !!

Aug 15, 2009 | 1995 Jaguar XJ6

2 Answers

1988 Jaguar XJ6 S-LINE 4.0L V-6


Fuel pump is bad or plugged fuel filter it seems. Crack the line from the filter leading towards the engine first. If gas starts squirting out fast, you have good pressue. If not the filter is plugged or a bad pump. How old is the fuel filter by chance? If original its plugged up by now

May 24, 2009 | 1988 Jaguar XJ6

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