Top 20 1961 Cadillac 62 - Page 8 Questions & Answers

Question edited for clarity, but NO MODEL!! Question moved from MISCellaneous to Cadillac, but we have 'make year model' categories for them all. What is the resting voltage of the battery? All modern cars, especially high-end, electronically computerized makes like Cadillac need a minimum voltage to run correctly. IIRC it is around 11 volts. You need our electronics Expert Jeff Armer on this one. Ideally you need an auto-electrician rather than a garage workshop. Their $5,000 bi-directional scan tool computer can diagnose the ECM, BCM all the modules and sensors, plus all the computer network connections between them. Choose a mobile one and they will come to you. They are less expensive than a garage because they are mobile and have low overheads. https://www.google.com/search?q=auto+electrician+near+me ..

I'm assuming yours has an automatic transmission. Do you have any warning lights on the dashboard? Is it doing, (or not doing), anything else? Do you get this high revving at idle once the engine has warmed up to working temperature? This issue could be either an fuel supply issue, an engine electronics issue or even a transmission issue. Have you had it plugged into a diagnostic system or an obd2 scanner to check for trouble codes? These will give clues to where the issues might be. If you have to pay for this service get quotes at 4 or 5 places as prices can be VERY different. If you get the codes comment below with them and i'll try to help you more.

that is called r Transmission FLARE or False neutrals. the pump is weak !(or leaks caused) ATF levels correct at the dip stick. yes, try a full transmission flush and fill ATF and the correct kind. maybe some other jokers used engine oil or diesel or other junk there. (as in junk SNAKE OIL lucas CRAPPPPPPPPPPP the same pump fills the TC so , learn that. if you read the service manual it tells the techs to check main tranny pump pressure test PORT for first. if ATF flush fails. all transmission shops know that and do that if you ask. low line pressure has many causes and is super common. 1: bad AFT or pan filter in packed up with crapppppp 2: a bad pump 3: bad pump regulator (pressure) 4: output major oil gallery leaks end to end due to bad seals or cracked slave diaphragms.(actuators to bands or clutch packs) and more, see that nice 3d drawing of the AT and all those ways to fail> (lost pressure) the ATF gets thinner hit and leaks more. overfilling the tranny is so common due to ignorance, or thinking is done like the engine and so bad and act maker remove the dipstick ending in warranty blow up trans endlessly by daft custmers. the steps are, this.

1. hot engine fully hot, 180f+ coolant
2. and my car calls for 80f ATF coolant that or bit higher.
3. then running engine
4. in park only.
5. dipstick checked, on my 2010 jeep I have to buy the dipstick from jeep and put it , as non sold have it. see what I mean?

never overfill it, or it will foam up and foam is mostly bubbles and bearings starve NOW and goes train wrecked damage, even seized. never use ADDITIVES here only use Caddy spec'd ATF , check carefully do not ASSUME. some super nasty additives (snake oil)_ even melts seals. a huge travesty that, (new trans cost) some additives even wreck the ATF chemistry there, OMG BAD.

USA car or not? or those pesky Canada cars with DRL option???????? No country told , day1 new delivered to what country matters ! not told. you why>?does car driver 100% okay> other wise. ????why, well it's failing.( if does in dark that is fail)is there a cure , sure, fix it. (or disable it)the first thing to do is :1: check all fuses (for blown) all , skip none , cab/bay2: then scan the PCM with any OBD2 scan tool. sold in USA.3: ask maker Cadillac to disable this silly feature that made a full good car, useless, my car I had all that disabled. (or by me as the case my be)DRL is daylight running light , option. Ive defeated many, and that electric EYE bull.cure 2, a HACK.the sensor wires to the IP cluster directlyit is 5vdc sensor. seen here.just unplug the sensor, see if that works.this puts.pin c12 at 5vdc, (sunny day)if not jumper C12 to D14 ground, now it works.no sure me cell tech here, Silicon or cadmium/sulfide.vast posts exist on this, and many found no cure.examples areread the manual yet, in the glove box? lost it? just slide the Sentinel to OFF and the problem goes away.read lost manual page 115 yetthe knob answers.https://www.manualslib.com/manual/231137/Cadillac-1998-Deville.html?page=115&term=sent&selected=1#manualand for fun read about others persons pains on topic here.https://www.cadillacforums.com/threads/daytime-light-sensor.1001697/

It appears to be year specific. https://www.gmpartsdirect.com/v-2002-cadillac-deville--dts--4-6l-v8-gas/electrical--sunroof https://www.google.com/search?q=2002+Cadillac+Deville+replacement+sunroof And dropping the year from the Search Query. https://www.google.com/search?q=Cadillac+Deville+replacement+sunroof

https://www.youtube.com/watch?v=LHd3lv0jeBQ https://www.youtube.com/watch?v=HvpB_VMpR5I

NOt TOLD WHO OR WHAT TOLD YOU IT MISFIRED?P03XXX DTC ERRORS OR SEAT OF PANTS./I CAN NOT GUESS.DOES IT DRIVE OK, NOT TOLDyour idle controls are a mess.does car drive ok or not, a huge problem not telling his fact.yes misfire is common and lots of causes and testswhy not get a shop ASE to do the tests. using tools and skills.

You have to go through the glove box passenger side dash after that should be relatively easy.

engine losing power sign ??? .You mean ENGINE POWER REDUCED ? This has to do with electronic throttle control -Throttle Actuator Control (TAC) System Description The throttle actuator control (TAC) system is used to improve emissions, fuel economy, and driveability. The TAC system eliminates the mechanical link between the accelerator pedal and the throttle plate. The TAC system eliminates the need for a cruise control module and idle air control motor. The following is a list of TAC system components: • The accelerator pedal assembly includes the following components: - The accelerator pedal - The accelerator pedal position (APP) sensor 1 - The APP sensor 2 • The throttle body assembly includes the following components: - The throttle position (TP) sensor 1 - The TP sensor 2 - The throttle actuator motor - The throttle plate • The engine control module (ECM) TAC System Default Actions/Reduce Power Modes There are 2 reduce power modes that the engine control module (ECM) can default to if an error is detected in the throttle actuator control (TAC) system. If an accelerator pedal position (APP) sensor 1 or APP sensor 2 circuit fault, throttle position (TP) sensor 2 circuit fault, or if a TP sensor 1 circuit fault is detected with some APP angle, the ECM goes into one of the 2 reduce power modes. In this mode, the engine torque is limited so that the vehicle cannot reach speeds of more than 100 km/h (60 mph). The ECM remains in this reduce power mode during the entire ignition cycle even if the fault is corrected. If there is a condition with the throttle actuator control circuits, throttle actuator command vs actual position fault, return spring check fault, or a TP sensor 1 circuit fault, the ECM goes into the other reduce engine power mode. In this mode, the engine speed is limited to 2,500 RPM and the 3-6 fuel injectors are randomly turned OFF. At this time the Reduced Power indicator is commanded ON. The ECM remains in the reduce power mode during the entire ignition cycle even if the fault is corrected. Observe, if a TP sensor 1 or throttle actuator control circuit fault is present at the time the vehicle is at idle, with no accelerator pedal angle, the engine may stall. © 2022 General Motors Corporation. All rights reserved. You need to have a qualified repair shop check it out.

uSA./canada https://eautorepair.net/Marketing/Default.asp

In my vehicle, when I go from Park to Drive, my doors lock. I presume yours do too. It does sound like a communications issue. The electronics on these are very complex. you need an auto-electrician with a pro-grade bi-directional scan tool computer to check comms between modules and sensors. We have a car electronics wizard here named @Jeff Armer, so hopefully he will see this.

We assume you're in the USA if you don't state other wise and that the vehicle has 4.6l gas engine and not a diesel engine. 284-325 kPa (41-47 psi)

https://www.troublecodes.net/cadillac/deville-4-6l-deville-4-9l-eldorado-4-6l-seville-4-6l/ This will give you more information about the codes. problems seems to be in the cruise control system.

That is normal for that year models, I think. Earlier cruise control just maintains the engine RPM in relation to speed. It does not use auto braking to reduce downhill speeds. Best way is to get it scanned with diagnostic scanner that can reset or check error codes for cruise control.

The AC drain is below the evaporator, which is in the same place as the heater matrix, so somewhere in the dash near the centre console. They are supposed to drip when you turn the AC off as the frost on the pipes melts.

Tighten the knock sensor to 18 lb ft

A generally good idea here is to go back to basics. You have put fresh fuel in so that's not the issue. Are you cranking using jumper cables, a boost pack or from the actual battery on the car? A battery stood that long with no use can become weak and cause start issues. Have you checked the battery in the actual key fob? If there is a built in immobiliser system in the car it might not be reading the key/fob so it's not turning the immobiliser off. Just cranking suggests there isn't a spark. Crank the engine for 2 to 3 seconds and turn the car OFF. Remove ONE plug lead and then that spark plug. Sniff the spark plug to see if it smells of gasoline. This shows the injectors are supplying fuel. With the spark plug still out of the engine refit it to the Spark plug lead and with a pair of Insulated grips/pliers hold the sparking end against the engine block. Get a helper to crank the engine for 2 to 3 seconds while you look closely at the firing end of the spark plug. You should be getting a regular, clean, blue spark. If these all seen to be OK you might need to get it plugged into an OBD2 scanner to check for DTC's (Diagnostic Trouble Codes). If you have to pay for this ask at 4 or 5 different places are prices can be VERY different. If you get any DTC's comment below with them and I'll try to explain them.

fell what does that mean, what is it.? why not tell what is wrong first. of the vast parts of any car name a feature that fails first so we can be on the same page. does fell = fuel? my wild wild guess? there is no fuel buttons at all. the fuse yes, , the key switch yes, the whole EFI fueling system complex. get the car serviced is the answer, lacking symptoms.

all fuses good , first, (endless and forever stated ) the starter relay has on output pin. and input and 2 coil wires. the relay clicks and the output pin must go to 12vdc and if starter not dead it spins and the voltage NOW can sag easy to 10vdc. due to normal battery internal resistance , all have. you do know right any starter (solenoid type) can be hot wired. we unplug the 1 solenoid wire. FIRST. (a tiny Faston 1 pin lug) here are the ROPES, me done 100s of times, 1960s up. 1: chock wheels. 2; shifter in park. 3: key off all the time , no kids in the cab . 4: we make jumper wire with an inline 15amp fuse (or20) this prevents wire burning up in hands, if wire is shorted or solenoid is bad and shorted. 5 we now jump PLUS lug main battery to that fast on pin on the starter solenoid. 6: see engine crank , spin over, see the stare is good and relay not. or bad PRNDL switch, on trannybox. to be more safe I connect bottom wire first and the try to reach battery form the side of car. vastly more safe that standing front. that is how I do it and have never failed to find the cause. other causes are endless (wires make that true) someone (sadly) hacked in REMOTE START junk.(and deadly google it) or hacked in and ALARM system and wires to starter are a wreck that is what hacking earns, failure. this is why a real tech looks at all those point with eyes for HACKING. I be blind here why ask the blind ? I have personally seen most the blunders done to cars wiring) even road hazards can hit starter and just break that wire. I look first.

Yes, this is it. https://www.google.com/search?q=1970+Cadillac+shift+indicator ..