My2001 Land Rovery Discovery II SE7 with 100,000 miles will crank but will not start. First the problem was intermittent where it would show up every few days but eventually start. Now it is permanent. Cranks properly and strongly. New battery installed earlier this year. Fully maintained vehicle. Before diving into the shop manual, I searched the forum here and saw about crank sensors and fuel pumps but no specific first steps to perform to determine the problem. Does anyone happen to know the most likely causes of this problem in this particular model and how to diagnose? Thanks. Tom.

 

The most likely cause is a bad crank sesnor.
First thing you need to do is check for spark, pull out a spark plug, reattach the plug wire and have a friend crank the engine while you look for spark.
Make sure that you DO NOT hold onto the spark plug while doing this.
If you have spark then check for fuel pressure at the fuel rail.
www.atlanticbritish.com for a new crank sesnor, I am bettting that is the problem thouigh, very common on DII's.

 

A failed crank sensor will not let the ECU fire the injectors. This is a pretty common ploblem, cheap and easy to fix.

 

Thanks for all the help.

It turned out to be the crankcase position sensor (CKP). As the shop manual says, there is no"limp home" capability. When the CKP sensor goes, noengine!

Discomike: I agree on the cheap@$67 for the part but "easy". How the heck do you get at the cable connector to disconnect the old one and, even harder,connect the new one.With the space between the block, exhaust and frame, it was next to impossible toplug in the new sensor. What's the "secret" that makes this "easy"?

Thx. Tom.

 

midget hands

 

midget forearms :-)

 

midget arms,,,


man hands need not apply,,,

 

Anybody found an easy way to get at the crackcase position sensor to disconnect and reconnect the connector? Thx. Tom.

 

I think that I popped it out of it's holder with a long flat screwdriver to give it more slack. Then I could just barely reach it (from above), but I had to try about a dozen diffferent arm and body positions because my wrists would not bend the right way.

 

I pulled it off the holder too. I wish there was 6" more slack on the connector wire tomake it load easierto disconnect and reconnect. I wonder what the dealer charges to change that thing. Tom.