Hi

So happy to drive my XJ Wagoneer again (I had an issue with the rear axle that wasn’t an issue at all). 4.0, 1987

but coming back from a WE, after 3 hours of good driving g, when arriving in town the engine stalled at a traffic light.

It restarted perfectly (in 4-5 seconds, as usual). Then Stopped again at the next traffic light.

a nightmare for the next 10 kilometers. But I arrived home.

I looked quickly at the engine bay and everything seems connected.

I took the car for a ride this morning. Everything was ok during the first 10 kilometers, the the isssue occurred again. No over heating, no low oil pressures as far as I can read on the instruments.

Can you advise on where to start ?

thanks

 

Verify fuel pressure. Refresh your grounds.

 

Thanks,

Fuel pressure I didn't check, pump is 1 year old and noisy in the car, but that seems to be normal.
I'll look how to check that in the manual.

The grounds thanks to Cruiser have been already checked and improved.

Can it be related to pressure stuff ?

Car is ok when driven at speed

 

Of my Tips at www.cruiser54.com, how many and which ones have you completed?

 

It was 2 or 3 years ago
So maybe I should check again, TPS and so on.

Any recommandation on where to start with this king of problem ?

1) fuel pressure (I'll search the forum for recommandations)
2) ?



1 – Ground refreshing and Upgrades

2 – C101 connector refreshing

3 – Connector and relay/receptacle refreshing

4 – Coil/ICM contacts

5 – Checking sensor grounds

6 – Sensor ground upgrade

7 – CPS testing and adjusting

8 – TPS testing and adjusting

9 – ECU connector refreshing

10 – Trans plug connector refreshing

11 – Throttle body and IAC cleaning

12 – Setting your 4.0 to #1 TDC

13 – Renix Distributor indexing

14 – Restoring Throttle Butterfly Adjustment

15 – Rear main seal diagnosis

16 – Vacuum test for exhaust restriction

17 – HO engine into Renix

18 – Improving the instrument panel ground

19 – Headlight harness installation

20 – 4WD shifting tips

21 – Renix EGR valve test

22 – Renix vacuum harnesses

23 – CPS timing advance mod

24 – 4.0 Engine date codes

25 – Valve cover mod ***NOW WITH VIDEO***

26 – Oil Filler cap Mod

27 – C101 Connector Elimination *

28-Improving blower motor performance

29-Improving the fuel pump ground

30-Adding the Sentinel Headlamp feature

31-Throttle body to MAP hose upgrade

32-Renix metric oil filter to SAE filter

33-Converting to an open cooling system

34-Eliminating the Heater Control Valve

35-Reducing cabin wind noise

36-Bypassing the Power/Comfort switch

37-Best injectors for Renix

38-Improving the wiper motor ground

39-4.0 Engine Removal

41- Easily track down and repair ENGINE VACUUM LEAKS

 

#7 and also make sure your intake manifold bolts are tight.