Crank no start! Please help!

Reply Subscribe

Thread Tools

Search this Thread

Jul 14, 2014 | 10:15 AM

robc7gt

Thread Starter

Junior Member

Joined: Jul 2014

Posts: 1

Likes: 0

From: Menifee

Crank no start! Please help!

I have a 94 xj6. It just died while driving. I have fuel at the rail and spark at the plugs..it just cranks and will not start.. not sure what else to check.... please help.... anyone? Thank you

Jul 14, 2014 | 12:42 PM

MidwestJag

Veteran member

Joined: Jun 2010

Posts: 1,444

Likes: 329

From: Wisconsin, United States

First, welcome to the forum, robc7gt:
Please take a moment and introduce yourself in the New Members/Intro section. We try to be a real friendly place around here!

Second, take a moment to read this post from a few days ago, in which Don gives the poster some sage advice regarding a similar non-starting car. Mostly, don't panic. These things are frequently more of a nuisance than a catastrophe. Best of luck! Scott

https://www.jaguarforums.com/forum/x...d-help-121630/

Jul 14, 2014 | 02:19 PM

Moodieblue

Junior Member

Joined: Mar 2013

Posts: 22

Likes: 5

From: Dunedin NZ

Hi robc7gt
I had a similar problem as Scott points out with my car, I went thru a whole lot of things and if you read my posts (moodieblue) you may find the answer. The guys on this forum are pretty clued up when it comes to all things related to these cars

Jul 15, 2014 | 08:34 AM

Jagfixer

Senior Member

Joined: Aug 2012

Posts: 656

Likes: 180

From: Millstadt, IL

Get a voltage/ohm meter and check crank sensor, cam sensor, and speed sensor. Specs are in Haynes manual and or somewhere on this site. You have spark and fuel. Test fuel pressure for volume. But I suspect a sensor.

Jul 15, 2014 | 07:41 PM

Don B

Joined: Feb 2014

Posts: 20,456

Likes: 15,240

From: Crossroads of America

Quote:

Originally Posted by Jagfixer

Hi Jagfixer,

You're right to suspect a sensor, but for clarity, robc7gt's car is a '94 XJ40, so it doesn't have a cam sensor or speed sensor (except in the transmission). It does have a crank sensor, which is one of the key components discussed in the other threads that MidwestJag and Moodieblue have referenced.

Perhaps you're thinking of the X300, which does have a camshaft sensor (CMP), but the ECM only refers to its signal to establish initial ignition timing, and thereafter determines timing exclusively based on the CKPS (X300 lingo for the CPS). An X300 engine will eventually start even if the cam sensor goes bad - it just has to use trial and error based on the CKPS signal until it figures out where cylinder 1 TDC is on the compression stroke. But robc7gt doesnt' have to worry about any of that. He may have a problem with his CPS though, just as you suspect....

Cheers,

Don