1996 LR Discovery

Reply Subscribe

Thread Tools

Search this Thread

Jun 24, 2016 | 01:48 PM

DonnaLandRover

Thread Starter

4wd High

Joined: May 2013

Posts: 9

Likes: 0

1996 LR Discovery

HELP.... during the hot summer days, it refuses to crank. Cranks in early morning before outside temp gets high (mid 80's-upper 90's ) then will crank in the evening once outside temps drop. Have been stranded one too many times. The first time it happened, was last summer, i waited for an hour for a tow truck to pick it & ME up to be taken to a mechanic & as soon as it was off the tow truck & the mechanic ask me to try cranking it so he could see what it was doing, IT CRANKED RIGHT UP...WHAT A WASTE OF A TOW BILL THAT DAY! IT IS A DAILY PROBLEM THIS SUMMER!!! ANY SUGGESTIONS???

Thanks,

Donna

Jun 24, 2016 | 05:43 PM

Shiftonthefly1

Pro Wrench

Joined: Mar 2012

Posts: 1,900

Likes: 142

From: Las Vegas

Crank position sensor.

Jul 7, 2016 | 05:15 PM

DonnaLandRover

Thread Starter

4wd High

Joined: May 2013

Posts: 9

Likes: 0

Thank you I will give that a try

Jul 8, 2016 | 01:34 AM

number9

Pro Wrench

Joined: Nov 2015

Posts: 1,935

Likes: 189

From: Coastal Georgia

Quote:

during the hot summer days, it refuses to crank.

Referring to starter not turning over engine? If so may be the starter going tango uniform. Crank position sensor shouldn't prevent starter from turning over engine.
......

Jul 23, 2016 | 07:37 AM

DonnaLandRover

Thread Starter

4wd High

Joined: May 2013

Posts: 9

Likes: 0

It turns over & only does it during summer months. What if any difference is there between Crank Sensor & Crankshaft Position Sensor?

Jul 23, 2016 | 08:57 AM

number9

Pro Wrench

Joined: Nov 2015

Posts: 1,935

Likes: 189

From: Coastal Georgia

Quote:

Originally Posted by DonnaLandRover

What if any difference is there between Crank Sensor & Crankshaft Position Sensor?

No difference. Have read previously eng light may be on while cranking if sensor is failed or in your situation when hot and won't start.
......

Quote:

Crankshaft position sensor (CKP Sensor)

The crankshaft position sensor is the most important
sensor on the engine. It is located in the left hand side
of the flywheel housing and uses a different thickness
of spacer for manual and automatic gearboxes. The
signal it produces informs the ECM:
- the engine is turning
- how fast the engine is turning
- which stage the engine is at in the cycle.
As there is no default strategy, failure of the
crankshaft sensor will result in the engine failing to
start. The fault is indicated by illumination of the
malfunction indicator light (MIL) on North American
specification vehicles.