cassandjohngreensmith

Hi all, have a little problem with our 2003 Chrysler grand voyager 3.3 auto. Recently had it LPG'd and had some issues which are now resolved. However we now notice that it seems to kickdown at full throttle and revs can go right round to 6,000rpm but the car just doesn't go and will not go up the gear until you let off the accelerator. I think the kickdown or shift point needs adjusting, any ideas on how to do this or what this can be? Thanks

It is a LPGTECH system with hanna injectors.

Hi, we bought our Chrysler Grand Voyager 3.3 v6 auto 2003 with a view to LPG convert it. We had this done over a week ago by a UKLPG approved installer local to us. We got it back on Monday and was initially very pleased but soon realised that it would shudder or cut out completely when it turned over from petrol to LPG. Took it back to the installer who reassured me it was working fine after connecting it to the diagnostics and that it just needed to settle down although he did change it to not only be prevented from changing over until it got to the correct temperature but also not until it hit 1500rpm so it would be going along when it changed over. However later that day it cut out when changing over to LPG as well as driving along the road and the engine management light came on so rang the installer to see if this was just part of bedding in and he asked us to bring it back so back to the installer it went who kept it in for a half day and said he took all the injectors off and started over with them. Got it back but still had the same problems and engine management light came up again. Plus we had now noticed that on acceleration from idle there was sometimes a slight shudder/hesitation and on braking we were sometimes getting a slight shudder now and then which caused the revs to surge and drop just as it went under 1000rpm and also would sometimes shudder and lose power in reverse. The installer had it back for 2 days this time and told me that he had calibrated it extensively and it was running fantastic but said that the engine management light may come on again as the LPG system runs slightly hotter and was causing the CAT to throw up the engine management light even though nothing was wrong. I felt by this point I was being fobbed off. He had changed it back from turning over at 1500rpm to just turning over when the temperature was sufficient for the system to do so, so I tried to remain hopeful however when picking our vehicle up the car was still shuddering as if going to cut out on turn over from petrol to LPG. Tthe installer said that the system just needed to settle in, I said fair enough so you are saying that it will stop doing that in the first 1,000 miles once it has bedded in and he said no he can't promise that and we are still getting all of the above problems. We have also noticed that when they removed the windscreen wipers and rear bumper in order to fit the system they failed to put them back correctly and have had to remove and fit them back correctly ourselves. The installer rang today to see how it is going and when my husband said we are still getting the problems he said he could either remove the system and refund our money or fit an entirely new system. Can anyone shed any light on this at all? Any recommendations as to what to do? When I say that it shudders it is almost cutting out.