So when you say 'it will not close' do you mean it won't stay latched or does it 'bang' as you attempt to close it and won't go into the opening all the way?
The reason i ask as it could simply be the 'claw' is stuck in the 'closed' position IF the door bangs and doesn't want to go all the way into the cab opening. IF that's the case then you can use a screwdriver and while holding the exterior button like you're trying to open the door and use the screwdriver to 'flip the claw' of the latch to the open position.
IF it closes into the opening but simply doesn't want to latch it MAY just need some lubrication. Spray it good with your favorite lube (WD40, etc) then work the 'claw' while activating the outside (or inside) button. If it still doesn't want to latch then chances are the spring inside of the latch mechanism is broken and the latch assembly will need to be replaced.
I know you have a '91, which SHOULD possibly be the same as the old '73-'87 regular pickup. IF it's the 'new' body style (1988-1998) then the videos aren't going to be of help at all.
These videos MAY help explain how things work and how the linkages clip onto the actual latch assembly;
I hope this helps.
Hi Jamie:
Since it starts I'd guess that the ignition system is OK. Maybe not great, but it's probably not the primary problem.
- That leaves fuel as the major suspect. I'd try a dose of spry type carb cleaner and make sure that the fuel filter is not obstructed.
The vehicle is over 25 years old so maintenance history is important, and at that age (and mileage) you can expect that components will be getting to the end of their service life.
One consolation of owning an older vehicle is that you can always find a project to work on.
Cheers.
Need more info....this is a 3 quarter ton so is this a 7.3 diesel or a gas engine? There can be several problems with the Truck. There's 3 things that make the Truck run which is Spark, Compression & Gas. Sounds like you have Spark & Compression. I believe you have a fuel problem. Check both fuel filters & replace them. If you have a diesel its more than likely the filter as well! Is there an Engine light on? Check the code if it is!
Fuel pump is over heating. Replace the pump with a new one A/C Delco part only others have been known not to hold pressure. I know I have lived that nightmare. Again A/C Delco part only. Good luck.
Have a complete change engine oil including change oil filter. and use unlead gas for the meantime,if your using a premium gas empty your tank and change it to unlead . run you vehicle for at least 10 miles before you have your emission test. after the test you can go back using you preferred gas
my best guess would be a short in the circuit. probably in the steering colam.
(if it's blows the fuse for the left and right turn signal.)
but it could also be just a wrong bulb in one of the brake light sockets.
but i would go with my first guess.
Super_guy said it all ! Remove all the screws on the inside of the panel. You can then use small pry-bars to slip behind the panel to pop out the clips that hold the panel in place. If in fact you do break any clips, you can buy then at Advance Auto, Auto Zone, Napa, and other places like that. Be sure to replace them, you don't want your door to sqeak and shake afterwards.
Hi Bob, Have a look at this site it may shed some light on to your problem....oldtimeynerd.net/2012/10/01auto-gm-trucks-resolving-ac-issues/ I’m happy to assist further over the phone at https://www.6ya.com/expert/randall_d932ef6e01588b0f
The only thing that will keep it from starting, since you have fuel and spark at the plugs. Would be really low compression. Under 90 pounds on most of the cylinders.
best advice is to have a turbo fitted by an accredited turbo specialist shop. They will have the equipment, knowledge and chips available to tune the engine on a dyno to pass regulations. They will also be certified to fit the modification plate to the vehicle to keep you legal.
This is an internet form or chat room
You ask those questions at repair shops,
when you go for an estimate-- AFTER-- you
pay them to diagnose & find a problem
Why not do the work yourself !
Need a little more info on your truck....I'll give this answer a try. Do you by chance have a 4.3L, 5.0L or 5.7L vortec engine in your 91. If so and it is overheating immediaetly after start up sounds like you have cylinder head gasket or head problem. The vortec engines are prone to this if they run to hot. I’m happy to assist further over the phone at https://www.6ya.com/expert/randall_d932ef6e01588b0f
